test: added MockedDeviceContext to voip unit tests (#33553)

packages/mock-providers/src/MockedAppRootBuilder.tsx

packages/mock-providers/src/MockedDeviceContext.tsx

packages/mock-providers/src/index.ts

packages/ui-voip/src/components/VoipPopup/VoipPopup.spec.tsx

...es/ui-voip/src/components/VoipPopup/VoipPopup.stories.tsx

.../components/VoipPopup/components/VoipPopupHeader.spec.tsx

...ip/src/components/VoipPopup/views/VoipDialerView.spec.tsx

...oip/src/components/VoipPopup/views/VoipErrorView.spec.tsx

.../src/components/VoipPopup/views/VoipIncomingView.spec.tsx

...s/VoipSettingsButton/hooks/useVoipDeviceSettings.spec.tsx

packages/ui-voip/src/components/VoipTimer/VoipTimer.spec.tsx

...c/components/VoipTransferModal/VoipTransferModal.spec.tsx