feat: image gallery (#2)

Reviewed-on: #2

internal/pkg/config/default.go

@@ -4,14 +4,22 @@ import "time"
 
 func Default() Cfg {
 	return Cfg{
-		Image: &ImageConfig{
+		Image: &Image{
 			Concurency:    10,
 			Quality:       80,
 			CacheLifetime: time.Hour * 24 * 31,
 		},
-		Tracking: &UmamiConfig{
+		Tracking: &Umami{
 			ScriptSrc: "https://umami.schreifuchs.ch/script.js",
 			WebsiteID: "54d8a379-77d5-4c20-b46d-5c9a6c9e39bd",
 		},
+		Gallery: &Gallery{
+			Path: "photos",
+		},
+		Cache: &Valkey{
+			RefreshTime: time.Minute * 10,
+			LifeTime:    time.Hour * 48,
+		},
+		LogJSON: true,
 	}
 }