Fix checkboxes on popover

[skjnldsv]

Basic popover

Before	After

Sharing popover (not much changes, but removed a lot of unused rules since it's now into all the popovermenus)

Before	After

[codecov]

Codecov Report

Merging #6976 into master will increase coverage by 0.03%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #6976      +/-   ##
============================================
+ Coverage     52.82%   52.85%   +0.03%     
- Complexity    22802    22814      +12     
============================================
  Files          1442     1442              
  Lines         88562    88632      +70     
  Branches       1349     1353       +4     
============================================
+ Hits          46783    46848      +65     
- Misses        41779    41784       +5

Impacted Files	Coverage Δ	Complexity Δ
lib/private/Files/Cache/Propagator.php	94.93% <0%> (-1.27%)	16% <0%> (ø)
lib/private/Log.php	79.31% <0%> (ø)	50% <0%> (+12%)	⬆️
core/js/js.js	61.94% <0%> (+0.66%)	0% <0%> (ø)	⬇️
lib/private/Security/CertificateManager.php	92.07% <0%> (+0.99%)	39% <0%> (ø)	⬇️
apps/systemtags/js/systemtagsfilelist.js	76.37% <0%> (+3.33%)	0% <0%> (ø)	⬇️

[jancborchardt]

Looking good! 👍

[MorrisJobke]

Looks good 👍