feat(admin-ui): Mark mandatory fields in UI

[mzico]

Went to create a client and faced issue. I didn't have any indication what I am doing wrong.
Here is the recorded screen: https://www.youtube.com/watch?v=HtU0CEocGV8&ab_channel=MohibZico

Turned out: "Redirect URI" is a mandatory field and after inserting a fake redirect uri, it worked.

We need to mark all mandatory fields so user can understand properly.

[duttarnab]

As per current logic, the redirect_uris is mandatory for only authorization_code or implicit grant_types. If you leave the grant_types field blank then it will take the default value i.e. authorization_code. So redirect_uri is required if the grant_types field is blank but not mandatory if grant_type is other than authorization_code or implicit.

We will not mark the redirect_uris field with red Astrics but put an alert if the field is left blank with grant_types authorization_code and implicit.

[duttarnab]

done