feat(help): sync locales

frontend/src/locale/en.json

@@ -10,6 +10,9 @@
   "sourceDocs": "Source",
   "none": "None",
   "cancel": "Cancel",
+  "help":"Help",
+  "emailUs":"Email us",
+  "documentation":"documentation",
   "demo": [
     {
       "header": "Learn about DocsGPT",

frontend/src/locale/es.json

@@ -10,6 +10,9 @@
   "sourceDocs": "Fuente",
   "none": "Nada",
   "cancel": "Cancelar",
+  "help":"Asistencia",
+  "emailUs": "Envíanos un correo",
+  "documentation": "documentación",
   "demo": [
     {
       "header": "Aprende sobre DocsGPT",

frontend/src/locale/jp.json

@@ -10,6 +10,9 @@
   "sourceDocs": "ソース",
   "none": "なし",
   "cancel": "キャンセル",
+  "help":"ヘルプ",
+  "emailUs": "メールを送る",
+  "documentation": "ドキュメント",
   "demo": [
     {
       "header": "DocsGPTについて学ぶ",

frontend/src/locale/zh-TW.json

@@ -10,6 +10,9 @@
   "sourceDocs": "原始文件",
   "none": "無",
   "cancel": "取消",
+  "help":"聯繫支援",
+  "emailUs": "寄送電子郵件給我們",
+  "documentation": "文件",
   "demo": [
     {
       "header": "了解 DocsGPT",

frontend/src/locale/zh.json

@@ -10,6 +10,9 @@
   "sourceDocs": "源",
   "none": "无",
   "cancel": "取消",
+  "help":"联系支持",
+  "emailUs": "给我们发邮件",
+  "documentation": "文档",
   "demo": [
     {
       "header": "了解 DocsGPT",