Fixes #25016 which noticed a .thead-light and border-color of the .table-border are the same color.

Adds some additional context on `.form-group` usage

Matches browser default inputs and swaps some max-width properties for a regular width

Update our browserslist.

* Add `last 1 major version` and `>= 1%`.
* Add Firefox.

Firefox v38 is older than the ESR, so basically replace ESR with v38.

* adds a hover state to the button element on the backrgound color utitility

* Adjust z-index to fix hover/focus overlaps

* Updated Link For Getting started Page

* Change URL scheme of previous commit

From http to https

* Restyle code element, clean up variables

- Removes the padding and background-color
- Changes the color to a brand color ()
- Add new variables to kbd element styles to account for removing the code ones
- Remove overrides that were needed previously

* only break between words, and override it in the pre

* make file inputs 100% wide

* scope custom file changes in input group for sizing

* shorter button labels for responsive

* narrower cards

* button was too wide

* downsize

* fewer links in pagination

* redo cell text

* improve overflow docs

* match layout behaviors

* ditch the indicator as separate element for psuedo-elements on the label

* move disabled to attribute only on input

* redo default inline check to support new markup

* redo inline forms

* clean up vars

* update validation mixin to new structure

* update checks in docs

* linting for for/id attributes

* Rewrite input group component

* Set the feedback to 100% width for input group

* Move from .row to .form-row for tighter layout

* no need for custom feedback here, we're using browser messaging

* add input group to validation examples

* add note about validating multiple

* migration note added

Allows for remote connections on same network (as Jekyll now seems to default to 127.0.0.1 which means it does not react to incoming external requests)

They have a shiny new site for v5 - https://fontawesome.com/