styles: Turn off hover effects on disabled buttons

[MatonAnthony]

Turns off the applied .mat-icon-button:hover on .mat-icon-button that are disabled.

This change should fix #5293

This is my first PR to Kubernetes, if anything is missing, I will happily fix it :)

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[codecov]

Codecov Report

Merging #5297 into master will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5297      +/-   ##
==========================================
- Coverage   45.46%   45.44%   -0.02%     
==========================================
  Files         214      214              
  Lines       10208    10208              
  Branches      108      108              
==========================================
- Hits         4641     4639       -2     
- Misses       5293     5294       +1     
- Partials      274      275       +1     

Impacted Files	Coverage Δ
...p/backend/integration/metric/common/aggregation.go	89.09% <0.00%> (-1.82%)	⬇️
src/app/frontend/login/component.ts	81.25% <0.00%> (-1.25%)	⬇️

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[MatonAnthony]

/assign @mhenc

[MatonAnthony]

Apparently this changes affect code coverage in backend code and in a component code, this looks flaky to me.

[floreks]

@MatonAnthony don't worry about codecov check. It does not have to pass. Their calculation algorithm is very weird. We've got it only for information purposes when the source code is actually changed.

[floreks]

Thanks for your contribution!

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floreks, MatonAnthony

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