Edit profile name and set password improvements

src/assets/translations/zh_Hans.json

@@ -3,6 +3,11 @@
         "name": "Convene",
         "tag_line": "只需连接"
     },
+    "global": {
+        "save": "",
+        "password_didnot_match": "",
+        "password_hint": ""
+    },
     "fallbacks": {
         "download_name": "下载",
         "original_text": "<原文>",
@@ -195,7 +200,8 @@
         "set_language": "设置您的语言",
         "language_description": "Convene 提供多种语言.",
         "dont_see_yours": "看不到你的？",
-        "tell_us": "告诉我们。"
+        "tell_us": "告诉我们。",
+        "display_name_required": ""
     },
     "new_room": {
         "status_avatar": "正在上传头像：{count}",