Add accessibility identifier to text bubble

[wiruzx]

No description provided.

[codecov-io]

Codecov Report

Merging #575 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #575      +/-   ##
==========================================
+ Coverage   59.24%   59.25%   +0.01%     
==========================================
  Files          88       88              
  Lines        4002     4003       +1     
==========================================
+ Hits         2371     2372       +1     
  Misses       1631     1631

Impacted Files	Coverage Δ
...Chat Items/TextMessages/Views/TextBubbleView.swift	82.22% <100%> (+0.19%)	⬆️

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