fix: error TS6137: Cannot import type declaration files. Consider importing 'express' instead of '@types/express'

for more info see microsoft/TypeScript#16472

Author: smoke

index.d.ts

@@ -1,5 +1,5 @@
 
-import * as e from '@types/express';
+import * as e from 'express';
 
 declare namespace ExpressRequestLanguage {
     interface Cookie {