Report detailspage tests

[sarahd93]

What:
Add tests for report detailspage.

Why:
The page does not have tests yet and we need them before we can start refactoring.

How:

Checklist:

• Tests
• CHANGELOG Entry

[codecov]

Codecov Report

Merging #2722 (0c1e035) into master (40839e6) will increase coverage by 0.62%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2722      +/-   ##
==========================================
+ Coverage   62.20%   62.82%   +0.62%     
==========================================
  Files        1115     1115              
  Lines       28393    28395       +2     
  Branches     8031     8031              
==========================================
+ Hits        17662    17840     +178     
+ Misses       9728     9566     -162     
+ Partials     1003      989      -14     

Impacted Files	Coverage Δ
gsa/src/web/components/tab/tab.js	95.23% <ø> (ø)
gsa/src/gmp/models/note.js	100.00% <0.00%> (ø)
gsa/src/web/components/powerfilter/powerfilter.js	58.82% <0.00%> (+2.35%)	⬆️
gsa/src/web/store/entities/reports.js	100.00% <0.00%> (+21.05%)	⬆️
gsa/src/web/pages/reports/detailscontent.js	78.31% <0.00%> (+27.71%)	⬆️
gsa/src/web/pages/reports/detailspage.js	61.92% <0.00%> (+56.53%)	⬆️

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