feat: poll voting, location sharing, image captions, message forwarding

- Poll voting: PollContent sends m.poll.response on answer click
- Location: MLocation shows OSM map embed + share-location button in toolbar
- Image captions: caption field on media uploads sets message body
- Message forwarding: ForwardMessageDialog with searchable room picker
- Also includes ring timeout fix and earlier session patches

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

@@ -727,6 +727,7 @@ export const Message = as<'div', MessageProps>(
     const { focusWithinProps } = useFocusWithin({ onFocusWithinChange: setHover });
     const [menuAnchor, setMenuAnchor] = useState<RectCords>();
     const [emojiBoardAnchor, setEmojiBoardAnchor] = useState<RectCords>();
+    const [forwardOpen, setForwardOpen] = useState(false);
 
     const senderDisplayName =
       getMemberDisplayName(room, senderId) ?? getMxIdLocalPart(senderId) ?? senderId;
@@ -1028,6 +1029,26 @@ export const Message = as<'div', MessageProps>(
                               Reply
                             </Text>
                           </MenuItem>
+                          {!mEvent.isRedacted() && (
+                            <MenuItem
+                              size="300"
+                              after={<Icon src={Icons.ArrowRight} />}
+                              radii="300"
+                              onClick={() => {
+                                setForwardOpen(true);
+                                closeMenu();
+                              }}
+                            >
+                              <Text
+                                className={css.MessageMenuItemText}
+                                as="span"
+                                size="T300"
+                                truncate
+                              >
+                                Forward
+                              </Text>
+                            </MenuItem>
+                          )}
                           {!isThreadedMessage && (
                             <MenuItem
                               size="300"
@@ -1145,6 +1166,9 @@ export const Message = as<'div', MessageProps>(
             {msgContentJSX}
           </ModernLayout>
         )}
+        {forwardOpen && (
+          <ForwardMessageDialog mEvent={mEvent} onClose={() => setForwardOpen(false)} />
+        )}
       </MessageBase>
     );
   }