feat: Refine trail category model (#1059)

* feat: advanced trail categories

* rename remote_category

* fix merge issues

* subcategories for plugins mapping

* fix refresh

* remove vertical trail filter category scrolling

* cleanup

* add confirm modal for disabling a category

* Fix federation issues

* fix review findings

* redesign category settings page

* remove prio badge

* fix subcategory badge layout

* optimize subcategory settings layout

* further settings page layout optimization

* fix subcategory icon position

* fix

* update docs

---------

Co-authored-by: Christian Beutel <>

db/federation/create.go

@@ -682,17 +682,21 @@ func processCreateOrUpdateSummitLogActivity(activity pub.Activity, app core.App,
 			}
 		}
 
-		if len(photoURLs) > 0 {
-			photos := make([]*filesystem.File, len(photoURLs))
-			for i, purl := range photoURLs {
+		if len(photoURLs) == 0 {
+			record.Set("photos", []*filesystem.File{})
+		} else {
+			photos := []*filesystem.File{}
+			for _, purl := range photoURLs {
 				photo, err := filesystem.NewFileFromURL(context.Background(), purl)
 				if err != nil {
 					continue
 				}
-				photos[i] = photo
+				photos = append(photos, photo)
 			}
 
-			record.Set("photos", photos)
+			if len(photos) > 0 {
+				record.Set("photos", photos)
+			}
 		}
 
 		if gpxURL != "" {