chore(多语言): 部分多语言采用 isEnEnv 变量了判断，后面移植到语言包中

common/js/diy.js

@@ -334,7 +334,11 @@ export default {
 			let diyDataValue = res.data;
 			if (diyDataValue.value) {
 				this.diyData = JSON.parse(diyDataValue.value);
-				this.$langConfig.title(this.diyData.global.title);
+
+				// 导航栏标题要根据语言环境切换
+				const title = this.isEnEnv ? this.diyData?.global?.en_title : this.diyData?.global?.title;
+				if (title) this.$langConfig.title(title);
+
 				this.mpCollect = this.diyData.global.mpCollect;
 				this.setPublicShare();
 			/*	if (this.diyData.global.popWindow && this.diyData.global.popWindow.imageUrl) {