Optimize media upload

[bmarty]

Content

• Wording update
• Enable optimization by default
• Always limit video size
• Compress png to png

Motivation and context

element-hq/element-meta#2543

Screenshots / GIFs

See recorded ones

Tests

• Enable or disable the new setting
• Send media to the room and observe that it is compressed when it needs to

Tested devices

• Physical
• Emulator
• OS version(s):

Checklist

• Changes have been tested on an Android device or Android emulator with API 23
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/element-hq/element-x-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request title will be used in the release note, it clearly define what will change for the user
• 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

[github-actions]

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[jmartinesp]

LGTM, thanks!

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud