feat: add Table of contents (#981)

* chore: add table of contents module

* refactor

* lint

* null check

---------

Co-authored-by: Philipinho <16838612+Philipinho@users.noreply.github.com>

apps/client/public/locales/en-US/translation.json

@@ -357,5 +357,7 @@
   "Move": "Move",
   "Move page": "Move page",
   "Move page to a different space.": "Move page to a different space.",
-  "Real-time editor connection lost. Retrying...": "Real-time editor connection lost. Retrying..."
+  "Real-time editor connection lost. Retrying...": "Real-time editor connection lost. Retrying...",
+  "Table of contents": "Table of contents",
+  "Add headings (H1, H2, H3) to generate a table of contents.": "Add headings (H1, H2, H3) to generate a table of contents."
 }

apps/client/public/locales/zh-CN/translation.json

@@ -75,6 +75,8 @@
   "Full access": "完全访问",
   "Full page width": "全页宽度",
   "Full width": "全宽",
+  "View headings": "查看标题",
+  "Show article title menu.": "显示文章标题菜单",
   "General": "常规",
   "Group": "群组",
   "Group description": "群组描述",
@@ -170,8 +172,10 @@
   "Successfully restored": "恢复成功",
   "System settings": "系统设置",
   "Theme": "主题",
+  "On this page": "他是这个页面",
   "To change your email, you have to enter your password and new email.": "要更改您的电子邮箱，您需要输入密码和新的电子邮箱地址。",
   "Toggle full page width": "切换全页宽度",
+  "Toggle view headings menu": "切换查看广告菜单",
   "Unable to import pages. Please try again.": "无法导入页面。请重试。",
   "untitled": "无标题",
   "Untitled": "无标题",