Add $gutter parameter to make-col mixin

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Replace "label" with "tag" in navigation

Extract $navbar-brand-padding-y variable

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Add $list-group-item-padding-{x,y} variables

Add $card-columns-sm-up-column-gap variable

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Erratum from #19157
Closes #19245

Extract $code-padding-{x,y} variables

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Extract $code-font-size variable

Add $figure-caption-font-size variable

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Extract $dropdown-item-padding-x variable

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Extract $carousel-control-sm-up-width variable

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Merge branch 'fix-19094' of https://github.com/ameya-pandilwar/bootstrap into ameya-pandilwar-fix-19094

Docs: Add captions above progress bars

Add $small-font-size variable

Add $mark-bg so <mark>'s background-color can be customized independently of $state-warning-bg

Add $label-font-size variable in the name of not hardcoding values

Add $label-pill-border-radius variable

Clarify that $grid-breakpoints are minimum widths for each breakpoint

fixes #19148 as follow up to #19099: ensure local mixin variable is used for  in make-grid-columns mixin

Visual/manual test for checkbox/radio button kbd behavior

Fix typos in documentation - in plural tag names in reboot.md
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