FIX: Change the way the temporary files are deleted when remeshing

[sblauth]

This PR uses a try:except clause around the solver.run method of the optimization problem - and deletes the temporary remeshing files whenever an exception is raised in there.

This is way more convenient than having to change the sys.excepthook

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (4317910) 92.36% compared to head (f3f7226) 92.24%.

Files	Patch %	Lines
...n/shape_optimization/shape_optimization_problem.py	16.67%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #368      +/-   ##
==========================================
- Coverage   92.36%   92.24%   -0.12%     
==========================================
  Files          84       84              
  Lines        6717     6713       -4     
==========================================
- Hits         6204     6192      -12     
- Misses        513      521       +8     

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