feat: add a row for no document state

frontend/src/locale/en.json

@@ -54,7 +54,8 @@
       "name": "Document Name",
       "date": "Vector Date",
       "type": "Type",
-      "tokenUsage": "Token Usage"
+      "tokenUsage": "Token Usage",
+      "noData": "No existing Documents"
     },
     "apiKeys": {
       "label": "Chatbots",

frontend/src/locale/es.json

@@ -54,7 +54,8 @@
       "name": "Nombre del Documento",
       "date": "Fecha Vector",
       "type": "Tipo",
-      "tokenUsage": "Uso de Tokens"
+      "tokenUsage": "Uso de Tokens",
+      "noData": "No hay documentos existentes"
     },
     "apiKeys": {
       "label": "Chatbots",

frontend/src/locale/jp.json

@@ -54,7 +54,8 @@
       "name": "ドキュメント名",
       "date": "ベクトル日付",
       "type": "タイプ",
-      "tokenUsage": "トークン使用量"
+      "tokenUsage": "トークン使用量",
+      "noData": "既存のドキュメントはありません"
     },
     "apiKeys": {
       "label": "チャットボット",

frontend/src/locale/zh.json

@@ -54,7 +54,8 @@
       "name": "文件名称",
       "date": "向量日期",
       "type": "类型",
-      "tokenUsage": "令牌使用"
+      "tokenUsage": "令牌使用",
+      "noData": "没有现有的文档"
     },
     "apiKeys": {
       "label": "聊天机器人",