Feature/disable user role invites for adminn

[Eshwar1212-maker]

What kind of change does this PR introduce?

This feature ensures that users who have the role of 'User' in a specific group can only send invitations to other users inviting them as a 'User' and not an admin. And admins still of course can do both.

Why was this change needed?

Issue: #866

Checklist:

Put a "X" in the boxes below to indicate you have followed the checklist;

• I have read the CONTRIBUTING guide.
• I checked that there were not similar issues or PRs already open for this.
• This PR fixes just ONE issue (do not include multiple issues or types of change in the same PR) For example, don't try and fix a UI issue and include new dependencies in the same PR.

Screen.Recording.2025-08-04.at.8.12.15.PM.mov

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[github-actions]

This PR is stale because it has been open for 90 days with no activity.

[violoncelloCH]

should not be stale :)

[github-actions]

This PR is stale because it has been open for 90 days with no activity.

[violoncelloCH]

still not stale :)