init: Init React Application

src/shared/store/LanguageStore/index.tsx

@@ -0,0 +1,15 @@
+import { makeAutoObservable } from "mobx";
+
+class LanguageStore {
+  language: string = "ru";
+
+  constructor() {
+    makeAutoObservable(this);
+  }
+
+  setLanguage = (language: string) => {
+    this.language = language;
+  };
+}
+
+export const languageStore = new LanguageStore();