fix: mention highlight [WPB-3507]

[github-actions]

Cherry pick from the original PR:

• fix: mention highlight [WPB-3507] #2165

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⚠️ Conflicts during cherry-pick:

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PR Submission Checklist for internal contributors

• The PR Title

  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
  • contains a reference JIRA issue number like SQPIT-764
  • answers the question: If merged, this PR will: ... ³

• The PR Description

  • is free of optional paragraphs and you have filled the relevant parts to the best of your ability

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What's new in this PR?

Cherry pick from #2164

[codecov]

Codecov Report

Merging #2166 (5b4f69c) into develop (2b85927) will increase coverage by 0.15%.
The diff coverage is 100.00%.

@@              Coverage Diff              @@
##             develop    #2166      +/-   ##
=============================================
+ Coverage      40.71%   40.87%   +0.15%     
- Complexity       981      985       +4     
=============================================
  Files            310      310              
  Lines          11369    11371       +2     
  Branches        1517     1518       +1     
=============================================
+ Hits            4629     4648      +19     
+ Misses          6300     6283      -17     
  Partials         440      440              

Files Changed	Coverage Δ
.../wire/android/ui/home/messagecomposer/UiMention.kt	0.00% <ø> (ø)
...otlin/com/wire/android/util/QueryMatchExtractor.kt	100.00% <100.00%> (+100.00%)	⬆️

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[github-actions]

Test Results

590 tests  +6   589 ✔️ +6   8m 6s ⏱️ + 1m 9s
  85 suites +1       1 💤 ±0 
  85 files   +1       0 ❌ ±0 

Results for commit 5b4f69c. ± Comparison against base commit 2b85927.

[github-actions]

APKs built during tests are available here. Scroll down to Artifacts!

[AndroidBob]

Build 477 succeeded.

The build produced the following APK's:

• com.wire.android-v4.5.0(7460750)(7460750)-staging-compat.apk