feat: 完成主题切换，语言切换的本地存储

src/store/modules/langStore/langStore.d.ts

@@ -0,0 +1,5 @@
+import { LangEnum } from '@/enums/styleEnum'
+export interface LangStateType {
+  // 当前语言
+  lang: LangEnum
+}

src/store/modules/langStore/langStore.ts

@@ -0,0 +1,26 @@
+import { defineStore } from 'pinia'
+import { lang } from '@/settings/designSetting'
+import { LangStateType } from './langStore.d'
+import { LangEnum } from '@/enums/styleEnum'
+import i18n from '@/i18n/index'
+import { setLocalStorage } from '@/utils/index'
+import { GO_LANG_SELECT } from '@/settings/storageConst'
+
+export const useLangStore = defineStore({
+  id: 'useLangStore',
+  state: (): LangStateType => ({
+    lang
+  }),
+  getters: {
+    getLang(): LangEnum {
+      return this.lang
+    }
+  },
+  actions: {
+    changeLang(lang: LangEnum): void {
+      this.lang = lang
+      i18n.global.locale = lang
+      setLocalStorage(GO_LANG_SELECT, lang)
+    }
+  }
+})