Added an app bar icon when there's an update

[Gold872]

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[codecov]

Codecov Report

Attention: Patch coverage is 58.33333% with 15 lines in your changes missing coverage. Please review.

Project coverage is 66.67%. Comparing base (8a28b83) to head (9686829).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/pages/dashboard_page.dart	51.61%	15 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #142      +/-   ##
==========================================
+ Coverage   66.47%   66.67%   +0.20%     
==========================================
  Files          78       78              
  Lines        8068     8085      +17     
==========================================
+ Hits         5363     5391      +28     
+ Misses       2705     2694      -11     

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