Eslint prevent duplicate import (#2516)

- eslint: prevent duplicate import

server/.eslintrc.js

@@ -74,6 +74,7 @@ module.exports = {
         pathGroupsExcludedImportTypes: ['@nestjs/**'],
       },
     ],
+    'import/no-duplicates': ["error", {"considerQueryString": true}],
     'unused-imports/no-unused-imports': 'warn',
     "@typescript-eslint/consistent-type-imports": ["error", { "prefer": "no-type-imports" }],
   },