Bump Bootstrap to 5.x

[scovetta]

Describe the bug
Bootstrap is included in Cli\wwwroot\js. We're using version 4.3.1, which is a bit old and has some non-inclusive language (whitelist), which was changed in version 5.1.

Let's upgrade to the latest version.

[gfs]

I tried to just bump the dependency but upgrading the dependencies without changing some elements of the ux seems to break a bunch of formatting so we can't just bump the dependency.

I'll try to set aside some with with David to perform the upgrade.

Since this pulls in OAT blazor components we might also need to upgrade that.

[gfs]

Now possible to complete thanks to @daalcant completing. microsoft/OAT#150