* Update the form focus mixin to use a manual `$enable-shadows` check so we can always ensure a focus state for accessibility and consistency
* - Add new `$input-btn-focus-width` and `$input-btn-focus-color` variables.
- Replace separate `$btn-focus-box-shadow` and `$input-focus-box-shadow`
variables with unified `$input-btn-focus-box-shadow` to match our
combined variables approach elsewhere.
* Put new focus width var to use in buttons mixins
* use new button input-box shadow var
* Add a new mixin for quickly adding linear gradient to components when $enable-gradients is set to true
* use correct var
* fix focus shadows in button mixins
* Add opt-in gradients to alerts, buttons, carousel, custom radios and checkboxes, custom file input, and dropdown items
* Generate .bg-gradient- utilities
* add headings to colors page and document bg-gradient utils
* update the button color for active status, check with yiq as it's done for basic state and hover state
* Fix media-breakpoint-between
When compiling .scss that uses media-breakpoint between with xs as the lower bound or xl as the upper bound, a compilation error can occur due to $min/$max being set to null, or the resulting .css can be invalid (see issue #23965).
(This is basically the same fix that was applied to media-breakpoint-only a short time ago).
* Update _breakpoints.scss
Make houndci-bot recommended changes.
* use a trailing slash when possible
* use https when possible
* remove a few redirected links
* consistently use `https://popper.js.org/`
* fix `iconUrl` in nuget files
* change Jekyll Windows guide to the official one
Fixes#23360 by restoring just the offset class generation to our grid
framework mixins. Also restores the `make-col-offset` mixin.
Docs have been restored to illustrate this behavior and merged with the
newer margin utilities examples.
