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 90.09901% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.66%. Comparing base (53ad7cf) to head (6cc8a11).

Files with missing lines	Patch %	Lines
backend/src/cms_backend/db/collection.py	82.60%	2 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%   81.66%   +0.27%     
==========================================
  Files          55       57       +2     
  Lines        2354     2438      +84     
  Branches      233      238       +5     
==========================================
+ Hits         1916     1991      +75     
- Misses        378      383       +5     
- Partials       60       64       +4     

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