chore(lint): remove ESLint configuration file and update lint scripts

- Deleted the .eslintrc.cjs file to simplify configuration management.
- Updated lint scripts in package.json to remove unnecessary extensions for linting.
- Added new devDependencies for ESLint and globals to enhance linting capabilities.

tests/unit/stores.test.ts

@@ -1,7 +1,7 @@
 /**
  * Zustand Stores Tests
  */
-import { describe, it, expect, beforeEach, vi } from 'vitest';
+import { describe, it, expect, beforeEach } from 'vitest';
 import { useSettingsStore } from '@/stores/settings';
 import { useGatewayStore } from '@/stores/gateway';