Fix currency on user add/edit page, fix badges regression
If the currency was different than CHF, it still displayed CHF.
I also noticed a regression from the Boostrap v5 migration - all badges were invisible.
Test Plan: ./phpunit --testsuite=Browser
Reviewers: #hkccp_developers, vanmeeuwen
Reviewed By: #hkccp_developers, vanmeeuwen
Differential Revision: https://git.kolab.org/D2821