Ensure correct focus configuration for Element Call before allowing users to call. (#31490)

* fixup type

* Validate Element Call foci config

* revert changes

* Split out logic to CallStore so we don't repeat checks.

* Refactor to use CallStore so we only fetch once.

* Add test for useRoomCall

* lint

* Ensure we enable MatrixRTC when configuring element call.

* fix test

* Update @element-hq/element-web-playwright-common to 2.2.2 and enable matrix rtc

* lint

* Ensure call is configured for header test

* type

* Improve coverage

* Update based on feedback

* fix type

test/test-utils/test-utils.ts

@@ -207,6 +207,7 @@ export function createTestClient(): MatrixClient {
             });
         }),
         getAccountDataFromServer: jest.fn(),
+
         mxcUrlToHttp: jest.fn().mockImplementation((mxc: string) => `http://this.is.a.url/${mxc.substring(6)}`),
         setAccountData: jest.fn(),
         deleteAccountData: jest.fn(),
@@ -310,7 +311,7 @@ export function createTestClient(): MatrixClient {
         _unstable_sendScheduledDelayedEvent: jest.fn(),
         _unstable_sendStickyEvent: jest.fn(),
         _unstable_sendStickyDelayedEvent: jest.fn(),
-
+        _unstable_getRTCTransports: jest.fn(),
         searchUserDirectory: jest.fn().mockResolvedValue({ limited: false, results: [] }),
         setDeviceVerified: jest.fn(),
         joinRoom: jest.fn(),