PWA capabilities

[66Bunz]

I noticed that right now it's possible to install the app as a sort of PWA, but it opens pages in new tabs inside the app, so I added real PWA capabilities to Yamtrack.

Let me know if there is something to change, add or remove

Solves #918

[66Bunz]

@FuzzyGrim any ETA on getting this merged?

[codecov]

Codecov Report

❌ Patch coverage is 37.50000% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.91%. Comparing base (4f749af) to head (5bc9f79).
⚠️ Report is 14 commits behind head on dev.

Files with missing lines	Patch %	Lines
src/app/views.py	37.50%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #893      +/-   ##
==========================================
- Coverage   82.97%   82.91%   -0.06%     
==========================================
  Files          69       69              
  Lines        6994     7002       +8     
==========================================
+ Hits         5803     5806       +3     
- Misses       1191     1196       +5     

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[FuzzyGrim]

Looks good, thanks for the PR!