fix: make ProxyMenu more accessible to screen readers (#11312)

* wip: commit progress on latency update

* chore: add stories and clean up tests

* refactor: clean up code

* fix: make sure headers aren't treated as interactive elements

* refactor: clean up tests

* fix: clean up stories

* docs: add clarifying comment

* fix: update stories again

* fix: clean up/extend prop definitions

* refactor: quick cleanup

* fix: apply Kira's feedback

* refactor: clean up abbr markup to account for pronunciation

* fix: more cleanup

* fix: refine screen reader output for VoiceOver

* refactor: clean up and redefine tests

* feature: add finishing touches

.vscode/settings.json

@@ -60,6 +60,7 @@
     "idtoken",
     "Iflag",
     "incpatch",
+    "initialisms",
     "ipnstate",
     "isatty",
     "Jobf",