feat: ability to configure default groups for local and oidc users

[niravparikh05]

Briefly describe the feature

• ability to configure default groups for local and oidc users

What problem does this feature solve? Please link any relevant documentation or Issues

• Admins can easily configure default groups for users, users can have default permission when first logging in ( applicable for both local and oidc )

(optional) What is your current workaround?

• admin has to manually assign the users to a group, for oidc users there are two steps when a provider does not support custom claims.
• 1. oidc user first has to login
• 2. admin can then assign a group

[akshay196]

Currently initialize scripts creates the All Local Users. We can change the permission of "All Local Users" group through API. For some reason dashboard is not allowing assigning project to the group.

For OIDC, let's think about how default OIDC group can be associated to OIDC users after login.