fix: restore LocaleKeys property in EnumLocaleExtends

Author: shijistar

src/extension.d.ts

@@ -24,6 +24,6 @@ declare module 'enum-plus/extension' {
      *
      * **CN:** 枚举本地化文本的Key值，可以用来增强编辑器的智能提示
      */
-    // LocaleKeys: NonNullable<string>;
+    LocaleKeys: NonNullable<string>;
   }
 }

src/types.ts

@@ -2,8 +2,7 @@ import type { EnumLocaleExtends } from 'enum-plus/extension';
 
 export type { LocalizeInterface } from './localize-interface';
 
-// @ts-expect-error: because LocaleKeys is a user-defined type, so ignore the error here
-export type EnumItemLabel = EnumLocaleExtends['LocaleKeys'] & NonNullable<string>;
+export type EnumItemLabel = EnumLocaleExtends['LocaleKeys'];
 
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 export type EnumInit<K extends keyof any = string, V extends EnumValue = EnumValue> =