fix(rooms): "Rename for me" names in search results, inbox and threads (#336)

Follow-up to #359: the personal room name now also shows in message-search
result groups and the search room filter (whose room search matches it
too), Inbox → Notifications, the threads list and the thread panel header.

Verified headless with general renamed to "Zebra Lounge": a global message
search and Inbox → Notifications both show "Zebra Lounge".

Fixes #336

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

src/app/pages/client/inbox/Notifications.tsx

@@ -98,6 +98,7 @@ import { useRoomCreatorsTag } from '../../../hooks/useRoomCreatorsTag';
 import { useRoomCreators } from '../../../hooks/useRoomCreators';
 import { PresenceRingAvatar } from '../../../components/presence';
 import { AvatarDecoration } from '../../../components/avatar-decoration/AvatarDecoration';
+import { useLocalRoomNames } from '../../../hooks/useRoomMeta';
 
 type RoomNotificationsGroup = {
   roomId: string;
@@ -223,6 +224,7 @@ function RoomNotificationsGroupComp({
   hour24Clock,
   dateFormatString,
 }: RoomNotificationsGroupProps) {
+  const localNames = useLocalRoomNames();
   const mx = useMatrixClient();
   const useAuthentication = useMediaAuthentication();
   const unread = useRoomUnread(room.roomId, roomToUnreadAtom);
@@ -428,7 +430,7 @@ function RoomNotificationsGroupComp({
             />
           </Avatar>
           <Text size="H4" truncate>
-            {room.name}
+            {localNames[room.roomId] ?? room.name}
           </Text>
         </Box>
         <Box shrink="No">