Fix, placeholder image, api

Added a placeholder image, code style
Fixed metadata missing issue
More work on api

main.go

@@ -27,6 +27,9 @@ var reactiveFS embed.FS
 //go:embed frontend-noscript
 var nojsFS embed.FS
 
+//go:embed duck.webp
+var placeholderFile string
+
 func main() {
 	setLogger()
 	setLogLevel()
@@ -76,6 +79,7 @@ func main() {
 		pkey,
 		util.NewFSWrapper(reactiveFS, "frontend-reactive/dist/", false),
 		util.NewFSWrapper(nojsFS, "frontend-noscript/", false),
+		&placeholderFile,
 	)
 	server.Start(":8000")
 	// TODO: Set up media server