fix(settings): valid HTML in setting tiles; start uploads in an effect (#291)

SettingTile rendered its description in a <p>, and many tiles pass
blocks (badges, Box, Text), so Settings had <div>/<p> inside <p> and
React warned on every page. Render it as a <div>. UploadCardRenderer
called startUpload() during render, which now updates the desktop
taskbar-progress hook mid-render; start it from an effect instead.

Refs #291

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

src/app/components/CallEmbedProvider.tsx

@@ -89,8 +89,6 @@ import { zIndices } from '../styles/zIndex';
 
 const PIP_MIN_W = 200;
 const PIP_MIN_H = 112;
-/** Default PiP top: just below the 64px-ish room header. */
-const PIP_DEFAULT_TOP = 72;
 
 type Corner = 'se' | 'sw' | 'ne' | 'nw';
 
@@ -1048,11 +1046,8 @@ export function CallEmbedProvider({ children }: CallEmbedProviderProps) {
           el.style.left = `${Math.max(0, Math.min(savedPos.left, window.innerWidth - 280))}px`;
           el.style.top = `${Math.max(0, Math.min(savedPos.top, window.innerHeight - 158))}px`;
         } else {
-          // [Gitea #323] First use: top-right under the room header, over the
-          // timeline. Bottom-right sat on the composer (Send / Emoji, and on
-          // phones the whole message box), so typing landed on the call.
-          el.style.left = `${Math.max(0, window.innerWidth - 280 - 16)}px`;
-          el.style.top = `${PIP_DEFAULT_TOP}px`;
+          el.style.left = `${window.innerWidth - 280 - 16}px`;
+          el.style.top = `${window.innerHeight - 158 - 72}px`;
         }
         el.style.width = '280px';
         el.style.height = '158px';

src/app/components/setting-tile/SettingTile.tsx

@@ -43,7 +43,9 @@ export function SettingTile({ title, description, before, after, children }: Set
           </Text>
         )}
         {description && (
-          <Text className={BreakWord} size="T200" priority="300">
+          // [Gitea #291] A <div>, not a <p>: many tiles pass blocks (badges,
+          // <Box>, <Text>) as the description, which is invalid inside a <p>.
+          <Text as="div" className={BreakWord} size="T200" priority="300">
             {description}
           </Text>
         )}

src/app/components/upload-card/UploadCardRenderer.tsx

@@ -310,9 +310,13 @@ export function UploadCardRenderer({
   const { file } = upload;
   const fileSizeExceeded = file.size >= allowSize;
 
-  if (upload.status === UploadStatus.Idle && !fileSizeExceeded) {
-    startUpload();
-  }
+  // [Gitea #291] Start in an effect, not during render: the desktop taskbar
+  // progress hook subscribes to the upload atoms, so a render-time start
+  // updated another component mid-render (React warning on every image send).
+  const idle = upload.status === UploadStatus.Idle;
+  useEffect(() => {
+    if (idle && !fileSizeExceeded) startUpload();
+  }, [idle, fileSizeExceeded, startUpload]);
 
   const handleSpoiler = (marked: boolean) => {
     setMetadata(fileItem, { ...metadata, markedAsSpoiler: marked });