fix: prevent non-strings from getting past media type check

Author: dbirman

src/aind_qc_portal/view_contents/panels/media/media.py

@@ -86,7 +86,8 @@ def _init_panel_objects(self):
 
     def _determine_media_type(self, reference: str):
         """Determine the media type from the reference without loading the full media object"""
-        if not reference:
+        if not reference or not isinstance(reference, str):
+            print(f"Could not determine media type for reference: {reference} of type {type(reference)}")
             self.media_type = "Unknown"
             return