Create room threads list view (#6904)

Implement https://github.com/vector-im/element-web/issues/18957 following requirements:
* Create a new right panel view to list all the threads in a given room.
* Change ThreadView previous phase to be ThreadPanel rather than RoomSummary
* Implement local filters for My and All threads

In addition: 
* Create a new TileShape for proper rendering requirements (hiding typing indicator)
* Create new timelineRenderingType for proper rendering requirements

src/contexts/RoomContext.ts

@@ -21,9 +21,10 @@ import { Layout } from "../settings/Layout";
 
 export enum TimelineRenderingType {
     Room,
+    Thread,
+    ThreadsList,
     File,
     Notification,
-    Thread
 }
 
 const RoomContext = createContext<IRoomState>({