Merge branch 'lotus' into fix/dialog-enter-closes

Several dialogs are <Box as="form"> with the header ✕ (folds IconButton,
no type attribute, so a submit button) as the form's first button. On
implicit submission, Enter in a text field "clicked" ✕, closing the dialog
and throwing away what was typed (a poll's question and answers, a
schedule, a report reason).

The header close/cancel IconButtons now have type="button": Create Poll,
Schedule Message, Report User, Report Room, Account Data editor, State
Event editor, device verification setup, and the message delete/report
dialogs.

Verified headless: in Create Poll, typing a question and pressing Enter
used to close the dialog; now it stays open with the question kept.

Fixes #315

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

src/app/components/AccountDataEditor.tsx

@@ -297,7 +297,7 @@ export function AccountDataEditor({
             </Chip>
           </Box>
           <Box shrink="No">
-            <IconButton onClick={requestClose} variant="Surface" aria-label="Close">
+            <IconButton type="button" onClick={requestClose} variant="Surface" aria-label="Close">
               <Icon src={Icons.Cross} />
             </IconButton>
           </Box>

src/app/components/DeviceVerificationSetup.tsx

@@ -315,7 +315,7 @@ export const DeviceVerificationSetup = forwardRef<HTMLDivElement, DeviceVerifica
               Setup Device Verification
             </Text>
           </Box>
-          <IconButton size="300" radii="300" onClick={onCancel} aria-label="Cancel">
+          <IconButton type="button" size="300" radii="300" onClick={onCancel} aria-label="Cancel">
             <Icon src={Icons.Cross} />
           </IconButton>
         </Header>
@@ -361,7 +361,7 @@ export const DeviceVerificationReset = forwardRef<HTMLDivElement, DeviceVerifica
               Reset Device Verification
             </Text>
           </Box>
-          <IconButton size="300" radii="300" onClick={onCancel} aria-label="Cancel">
+          <IconButton type="button" size="300" radii="300" onClick={onCancel} aria-label="Cancel">
             <Icon src={Icons.Cross} />
           </IconButton>
         </Header>

src/app/features/common-settings/developer-tools/StateEventEditor.tsx

@@ -275,7 +275,7 @@ export function StateEventEditor({ type, stateKey, requestClose }: StateEventEdi
             </Chip>
           </Box>
           <Box shrink="No">
-            <IconButton onClick={requestClose} variant="Surface" aria-label="Close">
+            <IconButton type="button" onClick={requestClose} variant="Surface" aria-label="Close">
               <Icon src={Icons.Cross} />
             </IconButton>
           </Box>

src/app/features/room/PollCreator.tsx

@@ -143,7 +143,7 @@ export function PollCreator({ roomId, threadRootId, onClose }: PollCreatorProps)
                   Create Poll
                 </Text>
               </Box>
-              <IconButton size="300" radii="300" onClick={onClose} aria-label="Close">
+              <IconButton type="button" size="300" radii="300" onClick={onClose} aria-label="Close">
                 <Icon src={Icons.Cross} />
               </IconButton>
             </Header>

src/app/features/room/ReportRoomModal.tsx

@@ -118,7 +118,7 @@ export function ReportRoomModal({ roomId, onClose }: ReportRoomModalProps) {
                   Report Room
                 </Text>
               </Box>
-              <IconButton size="300" onClick={onClose} radii="300" aria-label="Close">
+              <IconButton type="button" size="300" onClick={onClose} radii="300" aria-label="Close">
                 <Icon src={Icons.Cross} />
               </IconButton>
             </Header>

src/app/features/room/ReportUserModal.tsx

@@ -124,7 +124,7 @@ export function ReportUserModal({ userId, onClose }: ReportUserModalProps) {
                   Report User
                 </Text>
               </Box>
-              <IconButton size="300" onClick={onClose} radii="300" aria-label="Close">
+              <IconButton type="button" size="300" onClick={onClose} radii="300" aria-label="Close">
                 <Icon src={Icons.Cross} />
               </IconButton>
             </Header>

src/app/features/room/ScheduleMessageModal.tsx

@@ -202,7 +202,7 @@ export function ScheduleMessageModal({
                   {title}
                 </Text>
               </Box>
-              <IconButton size="300" radii="300" onClick={onClose} aria-label="Close">
+              <IconButton type="button" size="300" radii="300" onClick={onClose} aria-label="Close">
                 <Icon src={Icons.Cross} />
               </IconButton>
             </Header>

src/app/features/room/message/Message.tsx

@@ -725,7 +725,13 @@ export const MessageDeleteItem = as<
                     Delete Message
                   </Text>
                 </Box>
-                <IconButton size="300" onClick={handleClose} radii="300" aria-label="Close">
+                <IconButton
+                  type="button"
+                  size="300"
+                  onClick={handleClose}
+                  radii="300"
+                  aria-label="Close"
+                >
                   <Icon src={Icons.Cross} />
                 </IconButton>
               </Header>
@@ -865,7 +871,13 @@ export const MessageReportItem = as<
                     Report Message
                   </Text>
                 </Box>
-                <IconButton size="300" onClick={handleClose} radii="300" aria-label="Close">
+                <IconButton
+                  type="button"
+                  size="300"
+                  onClick={handleClose}
+                  radii="300"
+                  aria-label="Close"
+                >
                   <Icon src={Icons.Cross} />
                 </IconButton>
               </Header>

src/app/features/room/message/Reactions.tsx

@@ -69,15 +69,8 @@ export const Reactions = as<'div', ReactionsProps>(
     const measure = useCallback(() => {
       const container = containerRef.current;
       if (!container) return;
-      // [Gitea #305] The width the chips actually get (content box). The border
-      // box grows by 4 px while collapsed (margin -2 / padding 2), and measuring
-      // it made a row within 4 px of fitting flip collapsed↔expanded every frame.
-      const cs = getComputedStyle(container);
-      const rowWidth =
-        container.clientWidth -
-        (parseFloat(cs.paddingLeft) || 0) -
-        (parseFloat(cs.paddingRight) || 0);
-      const gap = parseFloat(cs.columnGap) || 8;
+      const rowWidth = container.getBoundingClientRect().width;
+      const gap = parseFloat(getComputedStyle(container).columnGap) || 8;
       const chips = keys ? keys.split('\u0000').map((k) => chipRefs.current.get(k)) : [];
       const widths = chips.map((el) => el?.getBoundingClientRect().width ?? 0);
       const moreWidth = moreRef.current?.getBoundingClientRect().width ?? 48;
@@ -117,21 +110,8 @@ export const Reactions = as<'div', ReactionsProps>(
         style={{
           ...props.style,
           ...(collapsed && rowHeight
-            ? // 2px breathing room so row-1 focus outlines are not clipped. Longhand
-              // margins so the timeline's marginTop survives (Gitea #305: the
-              // `margin` shorthand overrode it and, once removed, cleared it).
-              {
-                maxHeight: rowHeight + 4,
-                overflow: 'hidden',
-                padding: 2,
-                marginLeft: -2,
-                marginRight: -2,
-                marginBottom: -2,
-                marginTop:
-                  props.style?.marginTop !== undefined
-                    ? `calc(${typeof props.style.marginTop === 'number' ? `${props.style.marginTop}px` : props.style.marginTop} - 2px)`
-                    : -2,
-              }
+            ? // 2px breathing room so row-1 focus outlines are not clipped.
+              { maxHeight: rowHeight + 4, overflow: 'hidden', padding: 2, margin: -2 }
             : {}),
         }}
         ref={(el) => {