refactor: guest mode translation

public/locales/en/common.json

@@ -6,6 +6,7 @@
   "setting": "Setting",
   "more": "More",
   "action": {
+    "login": "Sign In",
     "logout": "Log Out",
     "change_avatar": "Change Avatar",
     "cancel": "Cancel",

public/locales/en/welcome.json

@@ -6,6 +6,7 @@
   "start_by_dm": "Send a Direct Message",
   "download": "Download Mobile apps",
   "help": "Got questions? Visit our help center",
+  "sign_in_tip": "Please sign in to send message",
   "onboarding": {
     "title": "VoceChat Setup",
     "welcome": "Welcome to your VoceChat!",

public/locales/jp/common.json

@@ -6,6 +6,8 @@
   "setting": "設定",
   "more": "もっと",
   "action": {
+    "login": "Sign In",
+
     "logout": "ログアウト",
     "change_avatar": "アバターを変更",
     "cancel": "キャンセル",

public/locales/jp/welcome.json

@@ -6,6 +6,7 @@
   "start_by_dm": "チャットしましょう",
   "download": "アプリをダウンロードしましょう",
   "help": "まだ聞きたいことがある？ ヘルプにアクセスしましょう",
+  "sign_in_tip": "Please sign in to send message",
   "onboarding": {
     "title": "VoceChat初期化",
     "welcome": "あなたのVoceChatへようこそ！",

public/locales/zh/common.json

@@ -6,6 +6,8 @@
   "setting": "设置",
   "more": "更多",
   "action": {
+    "login": "登录",
+
     "logout": "退出登录",
     "change_avatar": "修改头像",
     "cancel": "取消",

public/locales/zh/welcome.json

@@ -6,6 +6,7 @@
   "start_by_dm": "找人聊天",
   "download": "下载移动端APP",
   "help": "还有问题？访问我们的帮助中心",
+  "sign_in_tip": "请登录后发消息",
   "onboarding": {
     "title": "VoceChat初始化",
     "welcome": "欢迎来到你的VoceChat！",