Separation of automated reports from those created by users

[rodkiewicz]

#308

[codecov]

Codecov Report

Merging #509 (11f6c8c) into master (46b59bd) will decrease coverage by 0.06%.
The diff coverage is 72.72%.

@@            Coverage Diff             @@
##           master     #509      +/-   ##
==========================================
- Coverage   83.96%   83.89%   -0.07%     
==========================================
  Files         105      105              
  Lines        3454     3465      +11     
  Branches      227      228       +1     
==========================================
+ Hits         2900     2907       +7     
- Misses        500      504       +4     
  Partials       54       54              

Impacted Files	Coverage Δ
report/filters.py	75.75% <50.00%> (-5.73%)	⬇️
pola/management/commands/populate_db.py	80.55% <100.00%> (+3.13%)	⬆️
report/models.py	82.14% <0.00%> (-1.20%)	⬇️

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[mik-laj]

Tutaj można by dodać jakieś testy, aby mieć lepsze pokrycie, ale możemy to zrobić, jako osobny PR.