fix(ChatMessage): changed timestamp color for mine messages in Teams theme

[mnajdova]

This PR fix #924

[codecov]

Codecov Report

Merging #1010 into master will decrease coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #1010      +/-   ##
==========================================
- Coverage   81.34%   81.33%   -0.01%     
==========================================
  Files         673      673              
  Lines        8666     8667       +1     
  Branches     1532     1533       +1     
==========================================
  Hits         7049     7049              
- Misses       1602     1603       +1     
  Partials       15       15

Impacted Files	Coverage Δ
...emes/teams/components/Chat/chatMessageVariables.ts	100% <ø> (ø)	⬆️
.../themes/teams/components/Chat/chatMessageStyles.ts	16.12% <0%> (-0.54%)	⬇️

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[codecov]

Codecov Report

Merging #1010 into master will decrease coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #1010      +/-   ##
==========================================
- Coverage   81.39%   81.38%   -0.01%     
==========================================
  Files         673      673              
  Lines        8692     8693       +1     
  Branches     1471     1537      +66     
==========================================
  Hits         7075     7075              
- Misses       1602     1603       +1     
  Partials       15       15

Impacted Files	Coverage Δ
...emes/teams/components/Chat/chatMessageVariables.ts	100% <ø> (ø)	⬆️
.../themes/teams/components/Chat/chatMessageStyles.ts	16.12% <0%> (-0.54%)	⬇️

---

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Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov]

Codecov Report

Merging #1010 into master will decrease coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #1010      +/-   ##
==========================================
- Coverage   81.39%   81.38%   -0.01%     
==========================================
  Files         673      673              
  Lines        8692     8693       +1     
  Branches     1471     1537      +66     
==========================================
  Hits         7075     7075              
- Misses       1602     1603       +1     
  Partials       15       15

Impacted Files	Coverage Δ
...emes/teams/components/Chat/chatMessageVariables.ts	100% <ø> (ø)	⬆️
.../themes/teams/components/Chat/chatMessageStyles.ts	16.12% <0%> (-0.54%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0179b3d...5867413. Read the comment docs.