[ chebizarro/nostrc ] fix(gnostr): query nostrdb directly for user profile at login

The account button profile wasn't displaying because the profile
provider cache may not have been populated at login time.

Changed approach to query nostrdb directly using
storage_ndb_get_profile_by_pubkey() - the same method the profile
pane uses. This ensures we find the profile if it's in the database,
bypassing any profile provider initialization timing issues.

https://github.com/chebizarro/nostrc/commit/4e5306551bfa38c230f3a34f38c05912597ef381