Gallery list improvement (#622)

* Add grid view to galleries
* Show scene in gallery card
* Add is missing scene gallery filter
* Don't store galleries with no images

pkg/api/resolver_model_gallery.go

@@ -2,6 +2,7 @@ package api
 
 import (
 	"context"
+
 	"github.com/stashapp/stash/pkg/models"
 )
 
@@ -13,3 +14,12 @@ func (r *galleryResolver) Files(ctx context.Context, obj *models.Gallery) ([]*mo
 	baseURL, _ := ctx.Value(BaseURLCtxKey).(string)
 	return obj.GetFiles(baseURL), nil
 }
+
+func (r *galleryResolver) Scene(ctx context.Context, obj *models.Gallery) (*models.Scene, error) {
+	if !obj.SceneID.Valid {
+		return nil, nil
+	}
+
+	qb := models.NewSceneQueryBuilder()
+	return qb.Find(int(obj.SceneID.Int64))
+}