- Add AbortController to cancel pending IP lookups when component unmounts
- Prevent state updates on unmounted components by checking abort signal before setState calls
- Add useEffect cleanup that aborts pending requests on unmount
- Update lookupIp API function to accept optional AbortSignal parameter
- Converts callback-based fetch to async/await pattern for better control flow
- Aligns with other API functions that already support abort signals (fetchJails, fetchJailBannedIps)
Fixes TASK-ABORT-04
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>