Sync source_layer to firebase for completeness project

[tnagorra]

Changes

• sync source_layer to firebase for completeness project
• rename source_name to source_layer for vector layer

This PR doesn't introduce any:

• temporary files, auto-generated files or secret keys
• n+1 queries
• flake8 issues
• print
• typos
• unwanted comments

This PR contains valid:

• tests
• permission checks (tests here too)
• translations

[codecov]

Codecov Report

❌ Patch coverage is 47.61905% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.31%. Comparing base (d624848) to head (b7ae327).
⚠️ Report is 4 commits behind head on develop.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
utils/geo/vector_tile_server/models.py	47.61%	11 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop      #81      +/-   ##
===========================================
- Coverage    82.43%   82.31%   -0.13%     
===========================================
  Files          143      143              
  Lines         5791     5807      +16     
  Branches       497      500       +3     
===========================================
+ Hits          4774     4780       +6     
- Misses         849      859      +10     
  Partials       168      168              

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