UI implementation draft (AppAPI 1.4+)(Part1)

[bigcat88]

Reference: nextcloud/app_api#135

First part.

• Added API for UI, Example(not finished yet).

Missing:

• Example and description how to use it in docs, and example in example folder is not fully finished.

[codecov]

Codecov Report

Merging #168 (d233d01) into main (d229b43) will decrease coverage by 0.14%.
The diff coverage is 97.50%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #168      +/-   ##
==========================================
- Coverage   99.77%   99.63%   -0.14%     
==========================================
  Files          34       36       +2     
  Lines        3134     3331     +197     
==========================================
+ Hits         3127     3319     +192     
- Misses          7       12       +5     

Files	Coverage Δ
nc_py_api/ex_app/__init__.py	100.00% <100.00%> (ø)
nc_py_api/ex_app/ui/resources.py	100.00% <100.00%> (ø)
nc_py_api/ex_app/ui/ui.py	100.00% <100.00%> (ø)
nc_py_api/ex_app/integration_fastapi.py	98.52% <83.33%> (-1.48%)	⬇️
nc_py_api/ex_app/ui/files_actions.py	98.09% <94.73%> (ø)
nc_py_api/ex_app/ui/top_menu.py	95.74% <95.74%> (ø)

[bigcat88]

This will be merged, there will be a second part where the example will be completed, the documentation will be updated and then there will be a release.

Errors related to AppAPI, need first fix them there and after that continue work on polishing this.