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/features/message-search/SearchResultGroup.tsx

@@ -50,6 +50,7 @@ import {
 } from '../../hooks/useMemberPowerTag';
 import { useRoomCreators } from '../../hooks/useRoomCreators';
 import { useRoomCreatorsTag } from '../../hooks/useRoomCreatorsTag';
+import { useLocalRoomNames } from '../../hooks/useRoomMeta';
 
 type SearchResultGroupProps = {
   room: Room;
@@ -73,6 +74,7 @@ export function SearchResultGroup({
   hour24Clock,
   dateFormatString,
 }: SearchResultGroupProps) {
+  const localNames = useLocalRoomNames();
   const mx = useMatrixClient();
   const useAuthentication = useMediaAuthentication();
   const highlightRegex = useMemo(() => makeHighlightRegex(highlights), [highlights]);
@@ -212,7 +214,7 @@ export function SearchResultGroup({
             />
           </Avatar>
           <Text size="H4" truncate>
-            {room.name}
+            {localNames[room.roomId] ?? room.name}
           </Text>
         </Box>
       </Header>