feat: Select article list in sight

src/shared/store/LanguageStore/index.tsx

@@ -1,13 +1,14 @@
 import { makeAutoObservable } from "mobx";
+import { Language } from "../SightsStore";
 
 class LanguageStore {
-  language: string = "ru";
+  language: Language = "ru";
 
   constructor() {
     makeAutoObservable(this);
   }
 
-  setLanguage = (language: string) => {
+  setLanguage = (language: Language) => {
     this.language = language;
   };
 }