feat: 对话国际化样式调整

src/i18n/messages.ts

@@ -39,6 +39,10 @@ export const messages: I18nMessages = {
     conversation: {
       newConversation: 'New conversation',
       emptyState: 'No messages yet',
+      composer: {
+        placeholder: 'Type a message, press Enter to send, Shift + Enter for a new line',
+        dismissError: 'Close',
+      },
     },
     sidebar: {
       home: 'Home',
@@ -519,6 +523,10 @@ export const messages: I18nMessages = {
     conversation: {
       newConversation: '新建对话',
       emptyState: '暂无消息',
+      composer: {
+        placeholder: '输入消息，按 Enter 发送，Shift + Enter 换行',
+        dismissError: '关闭',
+      },
     },
     sidebar: {
       home: '首页',
@@ -999,6 +1007,10 @@ export const messages: I18nMessages = {
     conversation: {
       newConversation: '新しい会話',
       emptyState: 'まだメッセージがありません',
+      composer: {
+        placeholder: 'メッセージを入力し、Enter で送信、Shift + Enter で改行',
+        dismissError: '閉じる',
+      },
     },
     sidebar: {
       home: 'ホーム',