fix: remove pointer events from hidden list boxes

[AdamJaggard]

Some parts of a hidden listbox are still selectable even though they are hidden, particularly the nested SVG's. This makes them grab focus when moving the cursor or clicking.

[vercel[bot]]

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Name	Status	Preview	Comments	Updated (UTC)
media-chrome	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 18, 2023 2:47pm
media-chrome-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 18, 2023 2:47pm

[codecov[bot]]

Codecov Report

Merging #725 (087c5e2) into main (bc95f55) will increase coverage by 0.01%. Report is 5 commits behind head on main. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #725      +/-   ##
==========================================
+ Coverage   80.02%   80.03%   +0.01%     
==========================================
  Files          53       53              
  Lines        9908     9914       +6     
==========================================
+ Hits         7929     7935       +6     
  Misses       1979     1979              

Files Changed	Coverage Δ
src/js/experimental/media-captions-selectmenu.js	100.00% <100.00%> (ø)
src/js/experimental/media-chrome-option.js	96.01% <100.00%> (+0.10%)	:arrow_up:
src/js/experimental/media-chrome-selectmenu.js	63.93% <100.00%> (+0.10%)	:arrow_up:
.../js/experimental/media-playback-rate-selectmenu.js	100.00% <100.00%> (ø)
src/js/experimental/media-rendition-selectmenu.js	100.00% <100.00%> (ø)