Fix stickers display text on room summary

[surakin]

Content

Tweak how stickers are displayed in the room summary

Motivation and context

After this change matrix-org/matrix-rust-sdk#3715 stickers will show up in the room summary but only displaying the content body, which can be interpreted as a file name or as a sticker description, but in both cases it can look like a normal message (Images appear as 'Image').

Screenshots / GIFs

Before

After

Tests

• Step 1
• Step 2
• Step ...

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]

Thank you for your contribution! Here are a few things to check in the PR to ensure it's reviewed as quickly as possible:

• Your branch should be based on origin/develop, at least when it was created.
• The title of the PR will be used for release notes, so it needs to describe the change visible to the user.
• The test pass locally running ./gradlew test.
• The code quality check suite pass locally running ./gradlew runQualityChecks.
• If you modified anything related to the UI, including previews, you'll have to run the Record screenshots GH action in your forked repo: that will generate compatible new screenshots. However, given Github Actions limitations, it will prevent the CI from running temporarily, until you upload a new commit after that one. To do so, just pull the latest changes and push an empty commit.

[jmartinesp]

I've created #3225 to try to fix the CI issues you're seeing. EX Enterprise setup apparently broke it.

[jmartinesp]

@surakin that... didn't go well. Maybe you'll need to rebase origin/develop 🫤 .

[jmartinesp]

Agh, the wrong code got merged... That's what I get for playing with different remotes and having 2 opened PRs...

[jmartinesp]

Now that's better. Let's see if new screenshots are needed, otherwise LGTM.

[jmartinesp]

It seems like a test case needs to be fixed before it's merged. It would also be nice to check if no screenshot updates are needed.

[surakin]

It seems like a test case needs to be fixed before it's merged. It would also be nice to check if no screenshot updates are needed.

I ran the record screenshot actions and it didn't find any changes 🤔

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.12%. Comparing base (344e07b) to head (f2b074e).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3221      +/-   ##
===========================================
- Coverage    76.13%   76.12%   -0.02%     
===========================================
  Files         1645     1645              
  Lines        38839    38839              
  Branches      7530     7530              
===========================================
- Hits         29570    29566       -4     
- Misses        5361     5362       +1     
- Partials      3908     3911       +3     

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