Upgrading qr_flutter to 4.1.0

[Dante291]

What kind of change does this PR introduce?

Upgades qr_flutter package to 4.1.0.

Issue Number:

Fixes #2187

Did you add tests for your changes?

No

Have you read the contributing guide?

Yes

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3ee0c25) 79.85% compared to head (4225000) 79.90%.
Report is 13 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2188      +/-   ##
===========================================
+ Coverage    79.85%   79.90%   +0.05%     
===========================================
  Files          152      149       -3     
  Lines         7456     6973     -483     
===========================================
- Hits          5954     5572     -382     
+ Misses        1502     1401     -101     

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[palisadoes]

foregroundColor: Colors.black

Why was this removed? It's a UI design element