1. Allow setting default StorageClass in UI

2. Currently, the process for changing (from one to another) the default StorageClass involves patching or editing annotations on both SCs manually.

3. The UI shows an indicator of which SC is default, which would imply you could/should be able to set this in UI
4. openshift console

Was originally raised in https://bugzilla.redhat.com/show_bug.cgi?id=2014621

UX doc

https://docs.google.com/document/d/1FTlah-mBoMewZ1jUvj_7OEX9JeWg_BH0RWxl7ELf4iU/edit?tab=t.0#heading=h.je0a6yaafwo4