Integrate custom lints

[bartekpacia]

This is a follow-up of #1212

Resolves #1211

Review checklist

• [x] Terms and conditions reflect the current change
• [x] Contains enough appropriate tests
• [x] If aimed at production, writes a new summary in whatsnew/whatsnew-pt-PT
• [x] Properly adds an entry in changelog.md with the change
• [x] If PR includes UI updates/additions, its description has screenshots
• [x] Behavior is as expected
• [x] Clean, well-structured code

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 1.49254% with 66 lines in your changes are missing coverage. Please review.

Project coverage is 17%. Comparing base (5bcc5c1) to head (eb76819). Report is 2 commits behind head on develop.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #1215 +/- ## ======================================= + Coverage 17% 17% +1% ======================================= Files 229 229 Lines 6985 6949 -36 ======================================= - Hits 1149 1147 -2 + Misses 5836 5802 -34 ```