Incoming Element Calls now trigger a regular OS notification (#33499)

* Fix missing OS-level desktop notification for Element Call (MSC4075)

* Add Unit-test for textForCallInviteEvent and lint fixes

* Refactor call invite notification

* prettier fix

* Added mock supportsVoip for notifier-test

apps/web/test/unit-tests/Notifier-test.ts

@@ -131,6 +131,9 @@ describe("Notifier", () => {
             decryptEventIfNeeded: jest.fn(),
             getRoom: jest.fn(),
             getPushActionsForEvent: jest.fn(),
+            // Mock required because TextForEvent now evaluates supportsVoip for RTCNotification to trigger OS popups.
+            // The true/false value is arbitrary here, as this test only verifies the in-app toast creation, not the OS text output.
+            supportsVoip: jest.fn().mockReturnValue(true),
             supportsThreads: jest.fn().mockReturnValue(false),
             matrixRTC: {
                 on: jest.fn(),