Remove unnecessary, accidentally inverted condition for room ordering (#10178)

Author: justjanne

src/stores/room-list/algorithms/list-ordering/ImportanceAlgorithm.ts

@@ -104,7 +104,6 @@ export class ImportanceAlgorithm extends OrderingAlgorithm {
             // Every other sorting type affects the categories, not the whole tag.
             const categorized = this.categorizeRooms(rooms);
             for (const category of Object.keys(categorized)) {
-                if (!isNaN(Number(category))) continue;
                 const notificationColor = category as unknown as NotificationColor;
                 const roomsToOrder = categorized[notificationColor];
                 categorized[notificationColor] = sortRoomsWithAlgorithm(