Verification request is not showing when verify session popup is displayed (PSG-1017)

[mnaturel]

Type of change

• Feature
• Bugfix
• Technical
• Other :

Content

Fix an issue about the display priority of popup alerts when there is an incoming verification request. Priority of the incoming verification requests alert has been raised and any existing alerts about verification of sessions are canceled when a new request arrives.

Motivation and context

Closes #7743

Screenshots / GIFs

Tests

• Open a verified session on device A (can be any client: web, Android, iOS)
• Login to a new session in the Android app (device B)
• When landing in the home screen, see there is a popup displayed to ask to verify the session
• From device A, request a verification on the new session on device B
• Check the popup for the incoming request is displayed on device B
• Tap the popup
• Check the verification flow is started
• Check there is no popup to ask to verify the session on device B

Tested devices

• Physical
• Emulator
• OS version(s): Android 11

Checklist

• Changes has been tested on an Android device or Android emulator with API 21
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request includes a new file under ./changelog.d. See https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#changelog
• Pull request includes screenshots or videos if containing UI changes
• Pull request includes a sign off
• You've made a self review of your PR
• If you have modified the screen flow, or added new screens to the application, you have updated the test UiAllScreensSanityTest.allScreensTest()

[sonarqubecloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

13.8% Coverage
3.4% Duplication

[jmartinesp]

LGTM!