Voice Broadcast - Update last message in the room list

[Florian14]

Type of change

• WIP Feature
• Bugfix
• Technical
• Other :

Content

Display "Live broadcast" in the room list if a VB is live
Show a notice in the room list and in the timeline when a voice broadcast is ended

Improve RoomSummary.latestPreviewableEvent computation in the sdk:

• Event types with a reference relationship are not filtered anymore (was done to filter poll answers in encrypted events)
• Filter the encrypted events by checking the clear type instead

Note: For the moment, voice messages related to a VB are not filtered out on the sdk side, if the computed latestPreviewableEvent is a VB message, the application will just display a blank instead.

Motivation and context

Continue #7127

Design request:

Screenshots / GIFs

voice_broadcast_last_message.mp4

Tests

• Start a VB from device A
• On device B, verify that the last message in the related room is "Live Broadcast" (even if the VB is paused/resumed)
• Verify that new messages or typing events are not shown in the room list while the VB is live
• Verify that a notice is display in the room list (last message) and in the timeline when the VB is stopped
• Verify that voice messages related to the VB are not shown in the room list (if a voice message is catch after the stopped event, it will be blank instead)
• Verify that typing events and new messages are shown again

Tested devices

• Physical
• Emulator
• OS version(s):

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()

[ElementBot]

	Warnings
⚠️	Please add a changelog. See instructions here

Generated by 🚫 dangerJS against ceeaaa9

[sonarcloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

8.9% Coverage
0.0% Duplication

[jonnyandrew]

The code looks good to me.

There is however quite a bit of new logic but no tests added/changed. Is it worth adding some (at least for the Matrix SDK)?

[giomfo]

Thanks for your review @jonnyandrew , we agree about your remark about the missing tests
In order to unblock merge of this PR, I created a dedicated issue to add tests on last message logic : #7780