use absolute paths

chromy/handlers/import_data.py

@@ -1,9 +1,19 @@
 from __future__ import annotations
+import os
+from pathlib import Path
 
 from chromy.utilities import ingest_file
 
 
 def handle_import(collection: str, file: str) -> int:
-    records_added = ingest_file(collection, file)
+    if not os.path.exists(file):
+        raise FileNotFoundError()
+
+    # This ensures that the path saved as file_name in the metadatas is the
+    # full path rather than a simple file name.
+    file_path = Path(file)
+    full_file_path = str(file_path.resolve(file_path))
+
+    records_added = ingest_file(collection, full_file_path)
     print(f"Added {records_added} records to collection '{collection}'.")
     return 0