Bump bootstrap from 4.3.1 to 4.5.0

[dependabot-preview]

Bumps bootstrap from 4.3.1 to 4.5.0.

Release notes

Sourced from bootstrap's releases.

v4.5.0

Highlights

• New interaction utilities. Quickly set user-select with the new utilities and Sass map.
• New Reboot style for pointer cursors. We now include a role="button" selector in Reboot to set cursor: pointer on non-<button> element buttons.
• Examples are now downloadable. We've added a script to zip up and offer all our Examples as their own download from the docs.
• Saved ~5% from the compressed minified JS builds.
• Added guidance to our docs for how to work around our longstanding input group rounded corner bug.
• Redesigned docs homepage and navbar to increment us towards v5's new docs design.
• Deprecated bg-gradient-variant mixin as it's being removed in v5.
• Updated to jQuery v3.5.1, Jekyll v4, and dropped Node.js < 10 for development.

CSS

• #29413: Prevent vertical offset on progress bar in IE11
• #29745: Add display: flex on .breadcrumb-item
• #29819: Allow percentages in container widths
• #29857: Escape brackets
• #29946: Added new variable for padding on dropdown header
• #30004: Fixes disabled .btn cursor
• #30036: Added focus state to .btn-link
• #30043: Fix IE auto-size input-group to column
• #30049: Prevent grid with default cols from breaking when large pre is present by setting min-width: 0
• #30074: Use word-wrap in .text-break for IE and Edge compatibility
• #30166: Avoid border-radius functions returning negative values
• #30183: Remove unnecessary reduce motion when $enable-transition: false
• #30244: Fix centered modal scrolling issue
• #30262: Prevent link underline change from affecting some components
• #30361: Remove appearance from date inputs
• #30391: Prevent redundant transition: none in transition()` mixin
• #30497: Fix card list group borders & radii
• #30504: Fix spinner-grow animation in Safari
• #30515: Add .card-footer color
• #30555, #30512, #30480: Use box-shadow mixin for .form-select, .btn, and other form controls
• #30562: Added new interaction utilities for user-select and a new - role="button" in Reboot to set cursor: pointer.
• #30582: Delete unnecessary appearance: none from button.close
• #30594: Deprecate bg-gradient-variant mixin
• #30605, #30606: Grid now checks for for $grid-columns > 0
• #30609: Checks for an empty $grid-breakpoints map list to remove all breakpoints
• #30660: Prevent list group style leaks
• #30685: Disable auto-hiding scrollbar in IE and legacy Edge

JavaScript

• #29886: Close modal with keyboard=true & backdrop=static
• #29968: sanitizer.js: Add srcset in the allowed attributes
• #30381: Updated tab.js to address accessibility issue when using ul/li semantic
• #30383: ensure totype always return stringified null when null passed
• #30388: enable button toggle on label when checkbox is inside
• #30490: Switch to string constants to save ~5% on compressed file size

... (truncated)

Commits

• 7a6da5e Dist
• 109ad5d Bump version to 4.5.0.
• 4a0ddb0 Wording fixes
• 0f26be5 Move the input groups validation workaround in docs.
• 842b0d2 Remove mention of build tools
• 32932d2 Grammar fixes
• 4a26e51 Include the newly added utilities/interactions.scss file
• 0f3eda8 Update devDependencies and gems.
• 30e7df6 Backport d59de33 from #30772
• f1827ce Avoid bad scrollbar replacement into width values
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #47.