chore: upgrade i18next 26, prettier 3, fontsource-variable, domhandler 6, lint-staged 17

- i18next 23->26 + react-i18next 15->17
- prettier 2->3, reformat all files
- replace @fontsource/inter with @fontsource-variable/inter 5, update import path
- domhandler 5->6 (aligns with transitive deps)
- lint-staged 16->17

src/app/state/room-list/inviteList.ts

@@ -17,16 +17,16 @@ export const allInvitesAtom = atom<string[], [RoomsAction], undefined>(
       if (action.type === 'PUT') newIds.push(action.roomId);
       return newIds;
     });
-  }
+  },
 );
 
 export const useBindAllInvitesAtom = (
   mx: MatrixClient,
-  allRooms: WritableAtom<string[], [RoomsAction], undefined>
+  allRooms: WritableAtom<string[], [RoomsAction], undefined>,
 ) => {
   useBindRoomsWithMembershipsAtom(
     mx,
     allRooms,
-    useMemo(() => [Membership.Invite], [])
+    useMemo(() => [Membership.Invite], []),
   );
 };

src/app/state/room-list/roomList.ts

@@ -17,12 +17,12 @@ export const allRoomsAtom = atom<string[], [RoomsAction], undefined>(
       if (action.type === 'PUT') newIds.push(action.roomId);
       return newIds;
     });
-  }
+  },
 );
 export const useBindAllRoomsAtom = (mx: MatrixClient, allRooms: typeof allRoomsAtom) => {
   useBindRoomsWithMembershipsAtom(
     mx,
     allRooms,
-    useMemo(() => [Membership.Join], [])
+    useMemo(() => [Membership.Join], []),
   );
 };

src/app/state/room-list/utils.ts

@@ -16,7 +16,7 @@ export type RoomsAction =
 export const useBindRoomsWithMembershipsAtom = (
   mx: MatrixClient,
   roomsAtom: WritableAtom<string[], [RoomsAction], undefined>,
-  memberships: Membership[]
+  memberships: Membership[],
 ) => {
   const setRoomsAtom = useSetAtom(roomsAtom);