Fix
* fix: updated text to class details (1697)
* fix: updated text to class details
* fix: added button icons on additional class details
* fix: fixed the naming of title and buttons and removed display:block; that messes up the table
* fix: updated h4 tag
Co-authored-by: Dioni Zhong <4784791+dionizhusers.noreply.github.com> ([`4ede413`](https://github.com/ocadotechnology/codeforlife-portal/commit/4ede413412b986fbe7e219baef287fe82d62c77a))