[update 系统菜单] icon调整

src/assets/icon/iconfont.css

@@ -1,8 +1,8 @@
 @font-face {
   font-family: "iconfont"; /* Project id 4236293 */
-  src: url('iconfont.woff2?t=1720773883017') format('woff2'),
-       url('iconfont.woff?t=1720773883017') format('woff'),
-       url('iconfont.ttf?t=1720773883017') format('truetype');
+  src: url('iconfont.woff2?t=1721283373084') format('woff2'),
+       url('iconfont.woff?t=1721283373084') format('woff'),
+       url('iconfont.ttf?t=1721283373084') format('truetype');
 }
 
 .iconfont {
@@ -13,6 +13,10 @@
   -moz-osx-font-smoothing: grayscale;
 }
 
+.icon-fill-message-square:before {
+  content: "\e706";
+}
+
 .icon-nav-top:before {
   content: "\e600";
 }