* Initial spike of consolidated form checks
* Stub out forms rearrangement
- Prepping to drop non-custom file and range inputs
- Prepping to merge custom and native checks and radios (with switches)
- Prepping to merge custom select with form select
- Moving docs arround so forms has it's own area given volume of CSS
* Move input group Sass file to forms subdir
* Start to split and move the docs around
* Simpler imports
* Copyediting
* delete overview file
* Remove commented out code
* remove the custom-forms import
* rewrite flex-check as form-check, replace all custom properties
* Remove old forms doc
* stub out new subpage link section
* update migration guide
* Update nav, forms overview in page nav, and descriptions
* fix check bg position
* fix margin-top calculation
* rename .custom-select to .form-select
* Update validation styles for new checks
* add some vertical margin, fix inline checks
* fix docs examples
* better way to do this contents stuff, redo the toc while i'm at it
* page restyle for docs while here
* un-callout that, edit text
* redo padding on toc
* fix toc
* start to cleanup checks docs
* Rewrite Markdown tables into HTML
* Redesign tables, redo their docs
* Replace Open Iconic icons with custom Bootstrap icons
* Redesign the docs navbar, add a subheader, redo the sidebar
* Redesign docs homepage a bit
* Simplify table style overrides for docs tables
* Simplify docs typography for page titles and reading line length
* Stub out icons page
* Part of sidebar update, remove migration from nav.yml
* Move toc CSS to separate partial
* Change appearance of overview page
* fix sidebar arrow direction
* Add footer to docs layout
* Update descriptions
* Drop the .form-group class for margin utilities
* Remove lingering form-group-margin-bottom var
* improve footer spacing
* add headings to range page
* uncomment form range css
* Rename .custom-range to .form-range
* Drop unused docs var
* Uncomment the comment
* Remove unused variable
* Fix radio image sizing
* Reboot update: reset horizontal ul and ol padding
* de-dupe IDs
* tweak toc styles
* nvm, fix dropdown versions stuff
* remove sidebar nav toggle for now
* broken html
* fix more broken html, move css
* scss linting
* comment out broken helper docs
* scope styles
* scope styles
* Fixes#25540 and fixes#26407 for v5 only
* Update sidebar once more
* Match new sidenav order
* fix syntax error
* Rename custom-file to form-file, update paths, update migration docs for previous changes in #28696
* rename back
* fix size and alignment
* rename that back too
very verbose, but fully tests that cursor keys are handled correctly and have the desired final result (though stops short of checking the actual tab panels themselves)
unnecessary, as these checks should never fail (since the handler would not be called if there weren't any tabs, and the `index > 0` clause in the preceding `if` ensures that `index` will never be negative
- check that `tabindex` and `aria-selected` are properly set up with only one `aria-selected="true"` and `tabindex="0"`
- check that as fallback the first tab control is set to `aria-selected="true"`
Stick with the naive `tabs[index].click()` as it works correctly, and trying to trigger just `show()` of a tab instance resulted in weird side effects...
Tighten the outer `makeArrary`/`forEach` loop (assuming when there's an empty array the forEach just bails, so no need to check the length?)
- there's no ARIA pattern that would allow dropdowns in tablists; it cannot be expressed accessibly to AT users. it also has serious usability drawbacks. we're already saying in the docs it should not be
used ... this goes a step further and removes the handling for it
- initialisation happens very inelegantly - could do with some advice on how to move this to a function (should it be public, private, static?)
- keyboard handling works, but seems to get confused when switching too quickly between tabs sometimes
- activating tabs currently done via click() - there must be a nicer way to do this...how? fire _activate? which parameters to pass?
Stick with the naive `tabs[index].click()` as it works correctly, and trying to trigger just `show()` of a tab instance resulted in weird side effects...
Tighten the outer `makeArrary`/`forEach` loop (assuming when there's an empty array the forEach just bails, so no need to check the length?)
