fix(UI测试): 修复追加输入提示信息带特殊字符问题

--bug=1026944 --user=郭雨琦
https://www.tapd.cn/55049933/bugtrace/bugs/view/1155049933001026944

framework/sdk-parent/frontend/src/i18n/lang/en-US.js

@@ -3188,7 +3188,7 @@ const message = {
     insert_content: "Type content",
     append_content: "Append input",
     append_tip:
-      "Check, append the input after the existing content;<br/>Uncheck, clear the existing content and then input",
+      "Check, append the input after the existing content;Uncheck, clear the existing content and then input",
     pls_input: "Please input content",
     opt_type: "mode:",
     yes: "Yes",

framework/sdk-parent/frontend/src/i18n/lang/zh-CN.js

@@ -3090,7 +3090,7 @@ const message = {
     insert_content: "键入内容",
     append_content: "追加输入",
     append_tip:
-      "勾选，在现有内容后面追加输入；<br/>不勾选，清空现有内容后再进行输入",
+      "勾选，在现有内容后面追加输入；不勾选，清空现有内容后再进行输入",
     pls_input: "请输入内容",
     opt_type: "操作方式：",
     yes: "是",

framework/sdk-parent/frontend/src/i18n/lang/zh-TW.js

@@ -3085,7 +3085,7 @@ const message = {
     insert_content: "鍵入內容",
     append_content: "追加輸入",
     append_tip:
-      "勾選，在現有內容後面追加輸入；<br/>不勾選，清空現有內容後再進行輸入",
+      "勾選，在現有內容後面追加輸入；不勾選，清空現有內容後再進行輸入",
     pls_input: "請輸入內容",
     opt_type: "操作方式：",
     yes: "是",