fix: create reusable default profile pictures (#406)

Co-authored-by: Elias Schneider <login@eliasschneider.com>

backend/cmd/main.go

@@ -4,6 +4,10 @@ import (
 	"github.com/pocket-id/pocket-id/backend/internal/bootstrap"
 )
 
+// @title Pocket ID API
+// @version 1.0
+// @description API for Pocket ID
+
 func main() {
 	bootstrap.Bootstrap()
 }