feat: add message board page

assets/icons/message-board.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-message-circle" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
+  <path stroke="none" d="M0 0h24v24H0z" fill="none"/>
+  <path d="M3 20l1.3 -3.9c-2.324 -3.437 -1.426 -7.872 2.1 -10.374c3.526 -2.501 8.59 -2.296 11.845 .48c3.255 2.777 3.695 7.266 1.029 10.501c-2.666 3.235 -7.615 4.215 -11.574 2.293l-4.7 1" />
+</svg>

content/page/message-board.md

@@ -0,0 +1,15 @@
+---
+title: "留言板"
+slug: "message-board"
+layout: message-board
+menu: 
+    main:
+        name: 留言
+        params: 
+            icon: message-board
+        weight: -85
+edit: false
+comment: true
+---
+
+Hi 你好，我是 TaurusXin，欢迎来到我的博客，这里是我的留言板，你可以在这里留下你的评论，也可以在这里给我提出你的建议，每一条我都会认真看哦~