create default gulp task and recompile theme

gulpfile.js

@@ -60,7 +60,12 @@ function watch() {
   gulp.watch(config.js.watchFiles, gulp.series(js));
 }
 
+// Default task
+const start = gulp.series(compile, watch);
+
+
 exports.css = css;
 exports.js = js;
 exports.compile = compile;
 exports.watch = watch;
+exports.default = start;