Device manager - silence call ringers when local notifications are silenced (#9420)

* silence call ringers when local notifications are silenced

* more coverage for silencing

* explain disabled silence button

* lint

* increase wait for modal

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

test/test-utils/client.ts

@@ -78,6 +78,7 @@ export const mockClientMethodsUser = (userId = '@alice:domain') => ({
     getThreePids: jest.fn().mockResolvedValue({ threepids: [] }),
     getAccessToken: jest.fn(),
     getDeviceId: jest.fn(),
+    getAccountData: jest.fn(),
 });
 
 /**
@@ -103,6 +104,7 @@ export const mockClientMethodsServer = (): Partial<Record<MethodKeysOf<MatrixCli
     getCapabilities: jest.fn().mockReturnValue({}),
     getClientWellKnown: jest.fn().mockReturnValue({}),
     doesServerSupportUnstableFeature: jest.fn().mockResolvedValue(false),
+    isFallbackICEServerAllowed: jest.fn(),
 });
 
 export const mockClientMethodsDevice = (