[GH-3074] Fix issues with media permissions on Linux and Jitsi Meet in embedded mode on all platforms

[j0794]

Summary

• Fixes persistence of microphone and camera access on Linux by checking the platform before calling systemPreferences.getMediaAccessStatus, which is only implemented on Windows and macOS (https://www.electronjs.org/docs/latest/api/system-preferences#systempreferencesgetmediaaccessstatusmediatype-windows-macos)
• Allows an application to propagate the microphone and camera access setting for requests whose second-level domain matches the second-level domain of the server. For example, media permissions for the server mattermost.example.com will also propagate to Jitsi Meet jitsi.example.com in embedded mode, or any other service with the address *.example.com

Ticket Link

Fixes #3074
https://mattermost.atlassian.net/browse/MM-60965

Checklist

• Added or updated unit tests (required for all new features)
• Has UI changes
• read and understood our Contributing Guidelines
• completed Mattermost Contributor Agreement
• executed npm run lint:js for proper code formatting
• Run E2E tests by adding label Run Desktop E2E Tests

Device Information

This PR was tested on: Ubuntu 22.04

Release Note

NONE

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[devinbinnie]

Code looks okay to me, will defer to @enzowritescode for security review.
Thanks @j0794!

[enzowritescode]

@j0794 can you break out the permissions.media stuff into a separate PR? That looks good to me.

The other code allows for any subdomain to be arbitrarily trusted. In MM-60965 I outlined the security requirements to ensure there wouldn't be any issues with subdomain takeovers. The security requirements that I outlined will definitely take some work, but we don't want to sacrifice on security here.

[enzowritescode]

Does not meet ticket requirements