Add findFiles and findFile graphql queries (#5941)

* Add findFile and findFiles
* Add parent folder and zip file fields to file graphql types
* Add parent_folder, zip_file fields to Folder graphql type
* Add format to ImageFile type
* Add format filter fields to image/video file filters

pkg/models/query.go

@@ -5,7 +5,7 @@ type QueryOptions struct {
 	Count      bool
 }
 
-type QueryResult struct {
-	IDs   []int
+type QueryResult[T comparable] struct {
+	IDs   []T
 	Count int
 }