feat(calling): call video select

[Flemmli97]

What this PR does 📖

• Clicking on a user/video in calling will enlarge it. When enlarged will not show other users screen. Clicking on it again will revert ui back to before
• Also fix ui for pending users in calling

Which issue(s) this PR fixes 🔨

• Resolve #763

[github-actions[bot]]

Download the app installers for this pull request:

• build-macos.zip
• build-windows.zip
• build-ubuntu.zip
• build-android.zip

[github-actions[bot]]

Automated tests execution is complete! You can find the Playwright test report here and the Allure Test Report here

[lgmarchi]

• Code is good, and worked as expected.

https://github.com/user-attachments/assets/99d50d53-ec64-4daf-80bd-c0cadece4b6f