feat: 增加down-arrow icon

src/styles/font/demo_index.html

@@ -31,6 +31,12 @@
           <ul class="icon_lists dib-box">
           
             <li class="dib">
+              <span class="icon nutui-iconfont">&#xe6b2;</span>
+                <div class="name">down-arrow</div>
+                <div class="code-name">&amp;#xe6b2;</div>
+              </li>
+          
+            <li class="dib">
               <span class="icon nutui-iconfont">&#xe6af;</span>
                 <div class="name">success</div>
                 <div class="code-name">&amp;#xe6af;</div>
@@ -597,6 +603,15 @@
         <ul class="icon_lists dib-box">
           
           <li class="dib">
+            <span class="icon nutui-iconfont nut-icon-down-arrow"></span>
+            <div class="name">
+              down-arrow
+            </div>
+            <div class="code-name">.nut-icon-down-arrow
+            </div>
+          </li>
+          
+          <li class="dib">
             <span class="icon nutui-iconfont nut-icon-success"></span>
             <div class="name">
               success
@@ -1401,6 +1416,14 @@
           
             <li class="dib">
                 <svg class="icon svg-icon" aria-hidden="true">
+                  <use xlink:href="#nut-icon-down-arrow"></use>
+                </svg>
+                <div class="name">down-arrow</div>
+                <div class="code-name">#nut-icon-down-arrow</div>
+            </li>
+          
+            <li class="dib">
+                <svg class="icon svg-icon" aria-hidden="true">
                   <use xlink:href="#nut-icon-success"></use>
                 </svg>
                 <div class="name">success</div>

src/styles/font/iconfont.json

@@ -6,6 +6,13 @@
   "description": "nutui 3.0字体管理",
   "glyphs": [
     {
+      "icon_id": "19007017",
+      "name": "down-arrow",
+      "font_class": "down-arrow",
+      "unicode": "e6b2",
+      "unicode_decimal": 59058
+    },
+    {
       "icon_id": "18988195",
       "name": "success",
       "font_class": "success",