Expose SDKContext on the window & avoid using singleton store .instance (#34098)

* Expose SDKContextClass via window for debugging

* Remove stores from window if they are exposed via sdkContext

* Avoid usages of global store instance where React context is accessible

* Fix tests by adding SDKContext.Provider

* Fix tests by adding SDKContext.Provider

* Fix tests by adding SDKContext.Provider

* Fix tests by adding SDKContext.Provider

* Iterate

* Discard changes to apps/web/src/components/views/elements/AppTile.tsx

apps/web/test/test-utils/client.ts

@@ -188,6 +188,7 @@ export const mockClientMethodsCrypto = (): Partial<
 });
 
 export const mockClientMethodsRooms = (rooms: Room[] = []): Partial<Record<MethodLikeKeys<MatrixClient>, unknown>> => ({
+    getVisibleRooms: vi.fn().mockReturnValue(rooms),
     getRooms: vi.fn().mockReturnValue(rooms),
     getRoom: vi.fn((roomId) => rooms.find((r) => r.roomId === roomId) ?? null),
     isRoomEncrypted: vi.fn(),