Remove static version of bootstrap css
Add bootstrap sources
Add bootswatch sources and variable file
Improve the way admin css is handled
This finishes #162

Bump django-bootstrap to version 5
Exchange bootstrap files (js & css)
Adapt settings
Migrate to new version/resolve breaking changes
Move layout adaptions previously included in bootstrap.css into custom.css

This reverts commit 1e7ca6bf and parts of other commits

This is necessary since django-bootstrap4 expects a bootstrap javascript version that already includes popper
Bump jquery to 3.5.1
Bump bootstrap to 4.6.0
Remove separate popper lib
Adjust paths in settings. This also makes sure that the local jquery version is always used, which was previously not the case for admin views that depended on code.jquery.com
Remove explicit popper loading that was introduced in 2c359090 to mitigate the effects of the update in c0b3478c

Benjamin Hättasch authored 4 years ago and Nadja Geisler committed 4 years ago

Part of #9