add closeIcon attribute to HeaderAction

docs/src/COMPONENT_API.json

@@ -4379,6 +4379,16 @@
           "constant": false,
           "reactive": false
         },
+        {
+          "name": "closeIcon",
+          "kind": "let",
+          "description": "Specify the close icon from `carbon-icons-svelte` to render",
+          "type": "typeof import(\"carbon-icons-svelte\").CarbonIcon",
+          "isFunction": false,
+          "isFunctionDeclaration": false,
+          "constant": false,
+          "reactive": false
+        },
         {
           "name": "text",
           "kind": "let",

docs/src/pages/framed/UIShell/HeaderUtilities.svelte

@@ -32,7 +32,11 @@
   </div>
   <HeaderUtilities>
     <HeaderGlobalAction aria-label="Settings" icon="{SettingsAdjust20}" />
-    <HeaderAction bind:isOpen="{isOpen1}" icon="{UserAvatarFilledAlt20}">
+    <HeaderAction
+      bind:isOpen="{isOpen1}"
+      icon="{UserAvatarFilledAlt20}"
+      closeIcon="{UserAvatarFilledAlt20}"
+    >
       <HeaderPanelLinks>
         <HeaderPanelDivider>Switcher subject 1</HeaderPanelDivider>
         <HeaderPanelLink>Switcher item 1</HeaderPanelLink>