Enhancement: rename shortcut module and improve docstring/type hints consistency

[Guts]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 56.25000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 71.12%. Comparing base (f67df6d) to head (cb77ca9).
Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
...deployment_toolbelt/shortcuts/shortcuts_handler.py	46.15%	3 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #543      +/-   ##
==========================================
- Coverage   71.14%   71.12%   -0.02%     
==========================================
  Files          47       46       -1     
  Lines        3091     3089       -2     
  Branches      666      665       -1     
==========================================
- Hits         2199     2197       -2     
+ Misses        700      699       -1     
- Partials      192      193       +1     

Flag	Coverage Δ
unittests	70.54% <56.25%> (+0.01%)	⬆️

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Files with missing lines	Coverage Δ
qgis_deployment_toolbelt/constants.py	85.71% <100.00%> (+0.32%)	⬆️
qgis_deployment_toolbelt/jobs/job_shortcuts.py	55.88% <100.00%> (ø)
...deployment_toolbelt/shortcuts/shortcuts_handler.py	65.15% <46.15%> (ø)

[sonarcloud]

Quality Gate passed

Issues
4 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud