feat: Allow user to store case information with their account (#94, #179)

[gromdimon]

Tasks:

• Implement backend model, schema, api's
• Add backend tests
• Add frontend calls
• Fix small issues

[codecov]

Codecov Report

Merging #178 (e4be305) into main (247d9b1) will decrease coverage by 1.40%.
The diff coverage is 66.31%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #178      +/-   ##
==========================================
- Coverage   79.55%   78.16%   -1.40%     
==========================================
  Files         112      119       +7     
  Lines        3179     3512     +333     
  Branches      793      817      +24     
==========================================
+ Hits         2529     2745     +216     
- Misses        603      711     +108     
- Partials       47       56       +9     

Files	Coverage Δ
backend/app/api/api_v1/api.py	52.38% <100.00%> (+1.16%)	⬆️
backend/app/api/api_v1/endpoints/bookmarks.py	62.16% <ø> (ø)
backend/app/crud/__init__.py	100.00% <100.00%> (ø)
backend/app/crud/bookmarks.py	100.00% <ø> (ø)
backend/app/models/__init__.py	100.00% <100.00%> (ø)
backend/app/models/caseinfo.py	100.00% <100.00%> (ø)
backend/app/schemas/__init__.py	100.00% <100.00%> (ø)
backend/app/schemas/caseinfo.py	100.00% <100.00%> (ø)
frontend/src/api/caseinfo.ts	100.00% <100.00%> (ø)
frontend/src/api/common.ts	100.00% <100.00%> (ø)
... and 12 more

[holtgrewe]

It is hard to judge the view code by itself.

The backend looks sane except for the mismatch of the Alembic and Python enums.

Also, in principle users can have more than one caseinfo. Which case info is loaded in the UI?