feat(client): send track + geolocation to backend to log listening session

-  After extracting the track metadata (title, artist, album art, preview_url)
-  And after capturing user geolocation (lat, lng)
-  Send a POST request to our backend ( /api/listening-sessions)
-  Payload should include:
- [ ]  spotifyTrackId
- [ ] title
- [ ] artist
- [ ] preview_url
- [ ] image_url (album art)
- [ ] lat
- [ ] lng