Various bug fixes (#2945)

* Only update fingerprints if changed
* Fix panic when loading primary file fails
* Fix gallery/scene association
* Fix display of scene gallery in card
* Use natural_cs collation with paths for title sorting

internal/api/routes_scene.go

@@ -544,7 +544,11 @@ func (rs sceneRoutes) SceneCtx(next http.Handler) http.Handler {
 			}
 
 			if scene != nil {
-				_ = scene.LoadPrimaryFile(ctx, rs.fileFinder)
+				if err := scene.LoadPrimaryFile(ctx, rs.fileFinder); err != nil {
+					logger.Errorf("error loading primary file for scene %d: %v", sceneID, err)
+					// set scene to nil so that it doesn't try to use the primary file
+					scene = nil
+				}
 			}
 
 			return nil