Fix closing sidemenu issue

[theSinner]

Hi

I have an issue with closing the side menu. When I close the side menu, the side menu content went away, but it's space stays.
I think the side menu component code is changed and now the hidden class is assigned to the wrong class.

[codecov]

Codecov Report

Merging #5703 (c03143b) into master (20baa19) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5703      +/-   ##
==========================================
+ Coverage   44.36%   44.37%   +0.01%     
==========================================
  Files         214      214              
  Lines        9124     9124              
  Branches      113      113              
==========================================
+ Hits         4048     4049       +1     
  Misses       4801     4801              
+ Partials      275      274       -1     

Impacted Files	Coverage Δ
src/app/frontend/login/component.ts	76.74% <0.00%> (+1.16%)	⬆️

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[maciaszczykm]

Good spot. I can confirm that this is a problem on current master. Let me check your solution.

[maciaszczykm]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: maciaszczykm, theSinner

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