feat(gallery): preload images

internal/components/gallery/image.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 	"time"
 
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/images"
 	"github.com/valkey-io/valkey-go"
 )
 
@@ -22,6 +23,10 @@ type Image struct {
 	Height int
 }
 
+func (i Image) URL() string {
+	return images.URLFromUID(i.UID)
+}
+
 const (
 	imagesKey = "gallery:images:list"
 	hashKey   = "gallery:images:hash"