feat(chat): enhance sidebar with session management and deletion (#274)

src/i18n/locales/en/chat.json

@@ -11,7 +11,6 @@
     },
     "noLogs": "(No logs available yet)",
     "toolbar": {
-        "newSession": "New session",
         "refresh": "Refresh chat",
         "showThinking": "Show thinking",
         "hideThinking": "Hide thinking"

src/i18n/locales/en/common.json

@@ -1,6 +1,7 @@
 {
     "sidebar": {
         "chat": "Chat",
+        "newChat": "New Chat",
         "cronTasks": "Cron Tasks",
         "skills": "Skills",
         "channels": "Channels",

src/i18n/locales/ja/chat.json

@@ -11,7 +11,6 @@
     },
     "noLogs": "（ログはまだありません）",
     "toolbar": {
-        "newSession": "新しいセッション",
         "refresh": "チャットを更新",
         "showThinking": "思考を表示",
         "hideThinking": "思考を非表示"

src/i18n/locales/ja/common.json

@@ -1,6 +1,7 @@
 {
     "sidebar": {
         "chat": "チャット",
+        "newChat": "新しいチャット",
         "cronTasks": "定期タスク",
         "skills": "スキル",
         "channels": "チャンネル",

src/i18n/locales/zh/chat.json

@@ -11,7 +11,6 @@
     },
     "noLogs": "（暂无日志）",
     "toolbar": {
-        "newSession": "新会话",
         "refresh": "刷新聊天",
         "showThinking": "显示思考过程",
         "hideThinking": "隐藏思考过程"

src/i18n/locales/zh/common.json

@@ -1,6 +1,7 @@
 {
     "sidebar": {
         "chat": "聊天",
+        "newChat": "新对话",
         "cronTasks": "定时任务",
         "skills": "技能",
         "channels": "频道",