User impersonation button UX

What does this MR do and why?

Solves 381635. MR disables "Impersonate" button and provides a tooltip explaining why user cannot be impersonated.

Screenshots or screen recordings

How to set up and validate locally

User with Expired Password

1. Update password_expires_at to a value in the past for any user in users table
2. Log in as admin user
3. Visit http://localhost:3000/admin/users and select user with expired password

Expected: Disabled Impersonate button displays tool-tip when hovered over with text: "You cannot impersonate a user with an expired password"

Blocked User

1. Log in as admin user
2. Visit http://localhost:3000/admin/users and block any user
3. Navigate to blocked user's details

Expected: Disabled Impersonate button displays tool-tip when hovered over with text: "You cannot impersonate a blocked user"

User that cannot log in

1. Attempt to login as any user 6 times with an incorrect password until user's account is locked
2. Log in as admin user
3. Visit http://localhost:3000/admin/users and select locked user

Expected: Disabled Impersonate button displays tool-tip when hovered over with text: "You cannot impersonate a user who cannot log in"

Internal User

1. Log in as admin user
2. Visit http://localhost:3000/admin/users and select a bot user

Expected: Disabled Impersonate button displays tool-tip when hovered over with text: "You cannot impersonate an internal user"

Impersonation already in progress

Prerequisite: Ensure there are two admin users

1. Log in a first admin user
2. Visit http://localhost:3000/admin/users and select second admin user
3. Click the Impersonate button
4. Visit http://localhost:3000/admin/users and select any active user

Expected: Disabled Impersonate button displays tool-tip when hovered over with text: "You are already impersonating another user"

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.