implement API/UI to list, create, view and edit collections

[elfkuzco]

Rationale

This PR implements logic to list, view, create and edit collections in the API and UI

Changes

• make warehouse name a unique column in the DB
• make events list component stripe adapt to dark theme
• add views/routes for viewing list of collections and collection detail
• add new permission for collection to Editor Role

This closes #244

[codecov]

Codecov Report

❌ Patch coverage is 82.90598% with 20 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.28%. Comparing base (53ad7cf) to head (c31ba07).
⚠️ Report is 10 commits behind head on main.

Files with missing lines	Patch %	Lines
backend/src/cms_backend/db/collection.py	64.10%	12 Missing and 2 partials ⚠️
backend/src/cms_backend/api/routes/collection.py	93.93%	1 Missing and 1 partial ⚠️
backend/src/cms_backend/api/routes/warehouse.py	83.33%	2 Missing ⚠️
backend/src/cms_backend/db/warehouse.py	88.88%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #269      +/-   ##
==========================================
- Coverage   81.39%   81.28%   -0.12%     
==========================================
  Files          55       57       +2     
  Lines        2354     2463     +109     
  Branches      233      242       +9     
==========================================
+ Hits         1916     2002      +86     
- Misses        378      396      +18     
- Partials       60       65       +5     

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[benoit74]

Thank you, some enhancements:

• in TitlesFilters, we should rather use a "select" component since the list of collections is going to be very limited and it will be way more convenient for the user
• the "clear filters" button is still grayed-out when a collection is specified in the filter
• when creating a new collection or editing an existing one, the UI could check for collection name conflicts to prevent user trying silly things ; even if collection name is case sensitive, UI should make the comparison case-insensitive

[elfkuzco]

Refactored things a bit more by merging the component to create/edit collections too.