Add related object filter criteria to various filter types in graphql schema (#4861)

* Move filter criterion handlers into separate file
* Add related filters for image filter
* Add related filters for scene filter
* Add related filters to gallery filter
* Add related filters to movie filter
* Add related filters to performer filter
* Add related filters to studio filter
* Add related filters to tag filter
* Add scene filter to scene marker filter

pkg/models/studio.go

@@ -1,9 +1,7 @@
 package models
 
 type StudioFilterType struct {
-	And     *StudioFilterType     `json:"AND"`
-	Or      *StudioFilterType     `json:"OR"`
-	Not     *StudioFilterType     `json:"NOT"`
+	OperatorFilter[StudioFilterType]
 	Name    *StringCriterionInput `json:"name"`
 	Details *StringCriterionInput `json:"details"`
 	// Filter to only include studios with this parent studio
@@ -32,6 +30,12 @@ type StudioFilterType struct {
 	ChildCount *IntCriterionInput `json:"child_count"`
 	// Filter by autotag ignore value
 	IgnoreAutoTag *bool `json:"ignore_auto_tag"`
+	// Filter by related scenes that meet this criteria
+	ScenesFilter *SceneFilterType `json:"scenes_filter"`
+	// Filter by related images that meet this criteria
+	ImagesFilter *ImageFilterType `json:"images_filter"`
+	// Filter by related galleries that meet this criteria
+	GalleriesFilter *GalleryFilterType `json:"galleries_filter"`
 	// Filter by created at
 	CreatedAt *TimestampCriterionInput `json:"created_at"`
 	// Filter by updated at