Update to Bootstrap 5

[corylown]

Known changes:

• Footer updated to use component library
• Link styles (impacts underlining and color) updated to use component library
• Facet constraint controls updated to use component library
• The date range facet now does not display the date slider control or the histogram because these features are not compatible with Bootstrap 5.

Known issues:

• For exhibits that only have one search field configured the search box has squared off edges on the left side. This is a Blacklight bug that I have submitted a PR to fix.
• The browse category search box styling is broken. The X to clear the current search breaks out of the search box on Bootstrap 5. This is a Spotlight issue, but it's very difficult to get this to work right for both Bootstrap 4 & 5. Trying to come up with a good solution.

[taylor-steve]

Looking great! As always, here are some differences presented mostly without comment. Apologies if some are intentionally different.

• Possible issue with widgets configured for right positioned text: https://exhibits-stage.stanford.edu/lanciani

• Left text not wrapping? Stage (https://exhibits-stage.stanford.edu/american-enlightenment/feature/the-lewis-and-clark-expedition): Prod:

• Analytics grid styling (also some missing underlines on that page, but IDK if those were even intentional)

• Missing spacing on feedback recipients from General config:

• Private tag text color

Stage:

Prod:

[corylown]

Also seeing underlining when the exhibit card text/link wraps: