refactor(regex-tester): better description

src/tools/regex-tester/index.ts

@@ -4,7 +4,7 @@ import { defineTool } from '../tool';
 export const tool = defineTool({
   name: 'Regex Tester',
   path: '/regex-tester',
-  description: 'Regex Tester',
+  description: 'Test your regular expressions with sample text.',
   keywords: ['regex', 'tester', 'sample', 'expression'],
   component: () => import('./regex-tester.vue'),
   icon: Language,