docs(plugins): Update module-federation-plugin.mdx (#7380)

Fixed a typo in Sharing libraries section, where "need" was written twice.

Author: KhaledTaymour

src/content/plugins/module-federation-plugin.mdx

@@ -6,6 +6,7 @@ contributors:
   - chenxsan
   - burhanuday
   - christian24
+  - KhaledTaymour
 related:
   - title: Module Federation
     url: /concepts/module-federation/
@@ -74,7 +75,7 @@ format(new Date(2014, 1, 11), 'MM/dd/yyyy');
 ```
 
 and webpack will automatically share `date-fns` between all your federated modules that define `date-fns` as a shared library.
-However, if you want to access something that is not located at the root level of the package, for example `date-fns/locale/en-GB/index.js`, you need need to append `/` to the package name in your `shared` configuration:
+However, if you want to access something that is not located at the root level of the package, for example `date-fns/locale/en-GB/index.js`, you need to append `/` to the package name in your `shared` configuration:
 
 ```js
 const { ModuleFederationPlugin } = require('webpack').container;