View and revoke active sessions

[ghost]

#1006 (comment)

• View active sessions.
  • Indicate green color(or active) for realtime sessions with session start time User Accounts for AdGuardHome #997
  • Last seen(accessed) time for rest of sessions
  • Hint own session. (Your current session)
  • Display the session owner(account) User Accounts for AdGuardHome #997
  • Display location and IP (?include device type/ operating system/ browser)
• Revoke sessions
  • button to revoke each sessions (similar github)
  • button to revoke all sessions, except the current one(if necessary)