perf: 优化template-admin-ts自带样式导入逻辑

src/styles/index.scss

@@ -0,0 +1,10 @@
+/*
+ * @Author: RenXiaoDong
+ * @Date: 2025-06-30 16:03:42
+ */
+@import './lib/variable.scss';
+@import './lib/reset.scss';
+
+@import './vars.scss';
+@import './components/index.scss';
+// @import './font.scss';