test: fix flaky omnichannel send

[MartinSchoeler]

Proposed changes (including videos or screenshots)

changes the sendMessage locator on omnichannel to avoid it catching other elements that have the characters send like in this case

Issue(s)

Steps to test or reproduce

Further comments

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.55%. Comparing base (ad5d85b) to head (fb3f674).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #33768   +/-   ##
========================================
  Coverage    75.55%   75.55%           
========================================
  Files          492      492           
  Lines        21558    21558           
  Branches      5373     5373           
========================================
  Hits         16288    16288           
  Misses        4630     4630           
  Partials       640      640           

Flag	Coverage Δ
unit	75.55% <ø> (ø)

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[github-actions]

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on branch gh-pages at 2024-10-24 19:09 UTC