Added Window Closing Event to PersonnelMarketDialog

[IllianiCBT]

A WindowAdapter was added to the PersonnelMarketDialog class, which triggers an update to paid recruitment when the window is closed.

This action, closeOrCancelActionPerformed(), was extracted from btnCloseActionPerformed() to be reusable. This method ensures that certain cleanup activities are performed whether the dialog is closed via the close button or by manually closing the window. Previously, they would only run when the window was closed via the close button.

Closes #4335

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 10.24%. Comparing base (7ee9b9c) to head (c8ddbc7).
Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #4461      +/-   ##
============================================
- Coverage     10.24%   10.24%   -0.01%     
  Complexity     5809     5809              
============================================
  Files           925      925              
  Lines        126456   126462       +6     
  Branches      18770    18770              
============================================
  Hits          12953    12953              
- Misses       112228   112234       +6     
  Partials       1275     1275              

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