Upgrade to PatternFly 5 #21321
Description
We should upgrade all themes to PatternFly 5 as soon as these conditions are met:
- PF5 is released
- Keycloak 22 is final
All theme types should be upgraded so that everything is using the same PatternFly version. (account, admin, login, welcome)
Motivation
- Welcome is still on PF3, so we need to get it upgraded to a supported version.
- We should have everything on the same PatternFly version.
### Tasks
- [ ] https://github.com/keycloak/keycloak/issues/21342
- [ ] https://github.com/keycloak/keycloak/issues/21343
- [ ] https://github.com/keycloak/keycloak/issues/21344
- [ ] https://github.com/keycloak/keycloak/issues/21345
- [ ] https://github.com/keycloak/keycloak/issues/21341
- [ ] https://github.com/keycloak/keycloak/issues/28197
- [ ] https://github.com/keycloak/keycloak/issues/26667