style: 更新 .editorconfig 文件配置

- 扩展配置到更多文件类型，包括 CSS 预处理器文件
- 添加 end_of_line 和 max_line_length 设置
- 统一使用 LF 换行符
- 设置最大行长度为 120 字符

playwright.config.ts

@@ -63,7 +63,7 @@ export default defineConfig({
   reporter: 'html',
   /* Retry on CI only */
   retries: process.env.CI ? 2 : 0,
-  testDir: './tests/playwright',
+  testDir: './e2e/playwright',
   /* Maximum time one test can run for. */
   timeout: 30 * 1000,
   /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */