Remove more usages of singleton store getter in favour of contexts (#34099)

* 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

* Remove more usages of singleton store getter in favour of contexts

* Remove more usages of singleton store getter in favour of contexts

* Fix tests by adding SDKContext.Provider

* Fix tests by adding SDKContext.Provider

* Fix tests by adding SDKContext.Provider

* Fix tests by adding SDKContext.Provider

* Fix tests

* Fix tests

* Fix tests

* Iterate

* Fix bad merge

* Iterate

* Fix tests

* Iterate

* Iterate

* Iterate

* Iterate

* Iterate

* Improve coverage

* Improve coverage

apps/web/src/utils/room/placeCall.ts

@@ -9,12 +9,12 @@ Please see LICENSE files in the repository root for full details.
 import { type CallType } from "matrix-js-sdk/src/webrtc/call";
 import { type Room } from "matrix-js-sdk/src/matrix";
 
+import type LegacyCallHandler from "../../LegacyCallHandler";
 import { getPlatformCallTypeProps, PlatformCallType } from "../../hooks/room/useRoomCall";
 import defaultDispatcher from "../../dispatcher/dispatcher";
 import { type ViewRoomPayload } from "../../dispatcher/payloads/ViewRoomPayload";
 import { Action } from "../../dispatcher/actions";
 import PosthogTrackers from "../../PosthogTrackers";
-import { SDKContextClass } from "../../contexts/SDKContextClass.ts";
 
 /**
  * Helper to place a call in a room that works with all the legacy modes
@@ -24,6 +24,7 @@ import { SDKContextClass } from "../../contexts/SDKContextClass.ts";
  * @param skipLobby Has the user indicated they would like to skip the lobby. Otherwise, defer to platform defaults.
  */
 export const placeCall = async (
+    legacyCallHandler: LegacyCallHandler,
     room: Room,
     callType: CallType,
     platformCallType: PlatformCallType,
@@ -34,7 +35,7 @@ export const placeCall = async (
     PosthogTrackers.trackInteraction(analyticsName);
 
     if (platformCallType == PlatformCallType.LegacyCall || platformCallType == PlatformCallType.JitsiCall) {
-        await SDKContextClass.instance.legacyCallHandler.placeCall(room.roomId, callType);
+        await legacyCallHandler.placeCall(room.roomId, callType);
     } else if (platformCallType == PlatformCallType.ElementCall) {
         defaultDispatcher.dispatch<ViewRoomPayload>({
             action: Action.ViewRoom,