Add bash completion for services defined in ~/.pg_service.conf

[3ximus]

Description

I've added bash completion to services defined in the service file.

It's only triggered after typing service=

I've also cleaned some formatting of the file itself to make it consistent

Checklist

• I've added this contribution to the changelog.rst.
• I've added my name to the AUTHORS file (or it's already there).

• I installed pre-commit hooks (pip install pre-commit && pre-commit install), and ran black on my code.
• Please squash merge this pull request (uncheck if you'd like us to merge as multiple commits)

[j-bennet]

@3ximus Thank you! Please rebase on top of main, we have an issue with integration tests, and I disabled them for now.

[3ximus]

I'm sorry, in the process of rebasing the pull request was closed automatically however I've rebased it on main. Let me know if all is good. Thank you

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.61%. Comparing base (7f05cde) to head (a91a3b2).
Report is 13 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1491      +/-   ##
==========================================
- Coverage   80.13%   71.61%   -8.53%     
==========================================
  Files          25       25              
  Lines        3126     3167      +41     
==========================================
- Hits         2505     2268     -237     
- Misses        621      899     +278     

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[j-bennet]

@3ximus It's in. Thank you!