UI improvement for popup

[isakpulkki]

Little UI improvement for Point of Interest popups.

[codecov]

Codecov Report

Merging #297 (3fe15f3) into main (2ef0585) will increase coverage by 0.01%.
The diff coverage is 75.00%.

❗ Current head 3fe15f3 differs from pull request most recent head 8996850. Consider uploading reports for the commit 8996850 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #297      +/-   ##
==========================================
+ Coverage   80.54%   80.55%   +0.01%     
==========================================
  Files          55       55              
  Lines        1444     1445       +1     
  Branches      167      169       +2     
==========================================
+ Hits         1163     1164       +1     
  Misses        257      257              
  Partials       24       24              

Files Changed	Coverage Δ
recommender-back/src/apis/poi.py	100.00% <ø> (ø)
recommender-back/src/tests/apis/manager_test.py	94.44% <ø> (ø)
recommender-front/src/utils/MarkerUtils.jsx	94.73% <75.00%> (+0.29%)	⬆️

[JuusoSaavalainen]

lgtm