simplify script loading

cmd/root.go

@@ -18,7 +18,6 @@ package cmd
 
 import (
 	"encoding/json"
-	"io"
 	"log"
 	"os"
 
@@ -41,17 +40,8 @@ func (s *script) load(path string) error {
 	}
 	defer f.Close()
 
-	data, err := io.ReadAll(f)
-	if err != nil {
-		return err
-	}
-
-	err = json.Unmarshal(data, s)
-	if err != nil {
-		return err
-	}
-
-	return nil
+	err = json.NewDecoder(f).Decode(s)
+	return err
 }
 
 func handleWindowEvent(event *sdl.WindowEvent, m *milkDropWindow) {