message: Use inline type instead of a dedicated interface
diff: @@ -20,10 +20,10 @@ export interface Config {
  * below the prefix that the proxy plugin is mounted on. It must
  * start with a '/'.
  */
  - proxy: { [key: string]: string | ProxyConfig };
  -}
  -
  -interface ProxyConfig {
  + proxy: {
  + [key: string]:
  + | string
  + | {
  /**
  * Target of the proxy. Url string to be parsed with the url module.
  */
  @@ -50,4 +50,6 @@ interface ProxyConfig {
  * and headers that are set by the proxy will be forwarded.
  */
  allowedHeaders?: string[];
  + };
  + };
  }
  