Add support for Widget & Room Header Buttons module APIs (#32734)

* Add support for Widget & Room Header Buttons module APIs

To support https://github.com/element-hq/element-modules/pull/217

* Update for new api

* Test addRoomHeaderButtonCallback

* Extra mock api

* Test for widgetapi

* Convert enum

* Convert other enum usage

* Add tests for widget context menu move buttons

Which have just changed because of the enum

* Add tests for moving the widgets

* Fix copyright

Co-authored-by: Florian Duros <florianduros@element.io>

* Update module API

* A little import/export

---------

Co-authored-by: Florian Duros <florianduros@element.io>

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

@@ -680,11 +680,13 @@ export function mkStubRoom(
             maySendStateEvent: jest.fn().mockReturnValue(true),
             maySendRedactionForEvent: jest.fn().mockReturnValue(true),
             maySendEvent: jest.fn().mockReturnValue(true),
+            maySendMessage: jest.fn().mockReturnValue(true),
             members: {},
             getHistoryVisibility: jest.fn().mockReturnValue(HistoryVisibility.Shared),
             getJoinRule: jest.fn().mockReturnValue(JoinRule.Invite),
             on: jest.fn(),
             off: jest.fn(),
+            removeListener: jest.fn(),
         } as unknown as RoomState,
         eventShouldLiveIn: jest.fn().mockReturnValue({ shouldLiveInRoom: true, shouldLiveInThread: false }),
         fetchRoomThreads: jest.fn().mockReturnValue(Promise.resolve()),
@@ -713,6 +715,7 @@ export function mkStubRoom(
             isKicked: () => false,
         }),
         getMembers: jest.fn().mockReturnValue([]),
+        getEncryptionTargetMembers: jest.fn().mockReturnValue([]),
         getMembersWithMembership: jest.fn().mockReturnValue([]),
         getMxcAvatarUrl: () => "mxc://avatar.url/room.png",
         getMyMembership: jest.fn().mockReturnValue(KnownMembership.Join),