feat: remove hotjar

[MaxFrank13]

Hotjar is a third party service and we are moving towards removing support for third party services with the switch to frontend-base. More details in the corresponding issue #413

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.81%. Comparing base (5345d2e) to head (35b142f).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #717      +/-   ##
==========================================
+ Coverage   97.60%   97.81%   +0.21%     
==========================================
  Files         152      152              
  Lines        1334     1330       -4     
  Branches      231      230       -1     
==========================================
- Hits         1302     1301       -1     
+ Misses         31       28       -3     
  Partials        1        1              

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