Fix clippies

[andrewdavidmackenzie]

Fix new clippy warnings

[codecov]

Codecov Report

Attention: Patch coverage is 77.77778% with 2 lines in your changes missing coverage. Please review.

Project coverage is 88%. Comparing base (d2c8b8c) to head (4e4e04f).
Report is 2 commits behind head on master.

Files	Patch %	Lines
flowr/src/bin/flowrgui/gui/coordinator_message.rs	50%	1 Missing ⚠️
flowr/src/bin/flowrgui/gui/debug_message.rs	0%	1 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #2243   +/-   ##
======================================
+ Coverage      88%     88%   +1%     
======================================
  Files         151     151           
  Lines       18731   18699   -32     
======================================
- Hits        16421   16398   -23     
+ Misses       2310    2301    -9     

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