do not clear screen during rollup watch

Author: Conduitry

rollup.config.js

@@ -40,5 +40,8 @@ export default {
 		// If we're building for production (npm run build
 		// instead of npm run dev), minify
 		production && terser()
-	]
+	],
+	watch: {
+		clearScreen: false
+	}
 };