feat(icons): Add Clipboard icon and update MetadataProvider for null …

…checks

- Introduced a new Clipboard icon component in the Icons directory.
- Updated the Icons export to include the new Clipboard icon.
- Modified the MetadataProvider to use null checks instead of undefined checks for WindowCenter and WindowWidth.

This enhances the icon set and improves the robustness of the MetadataProvider class.

platform/core/src/classes/MetadataProvider.ts

@@ -200,7 +200,7 @@ class MetadataProvider {
         break;
       case WADO_IMAGE_LOADER_TAGS.VOI_LUT_MODULE:
         const { WindowCenter, WindowWidth, VOILUTFunction } = instance;
-        if (WindowCenter === undefined || WindowWidth === undefined) {
+        if (WindowCenter == null || WindowWidth == null) {
           return;
         }
         const windowCenter = Array.isArray(WindowCenter) ? WindowCenter : [WindowCenter];

platform/ui-next/src/components/Icons/Icons.tsx

@@ -69,6 +69,7 @@ import InvestigationalUse from './Sources/InvestigationalUse';
 import IconTransferring from './Sources/IconTransferring';
 import Alert from './Sources/Alert';
 import AlertOutline from './Sources/AlertOutline';
+import Clipboard from './Sources/Clipboard';
 import {
   Tool3DRotate,
   ToolAngle,
@@ -360,6 +361,7 @@ export const Icons = {
     />
   ),
   // Icons
+  Clipboard,
   ActionNewDialog,
   GroupLayers,
   Database,
@@ -666,6 +668,7 @@ export const Icons = {
   'layout-common-2x3': (props: IconProps) => LayoutCommon2x3(props),
   pencil: (props: IconProps) => Pencil(props),
   'icon-list-view': (props: IconProps) => ListView(props),
+  clipboard: (props: IconProps) => Clipboard(props),
 
   /** Adds an icon to the set of icons */
   addIcon: (name: string, icon) => {

platform/ui-next/src/components/Icons/Sources/Clipboard.tsx

@@ -0,0 +1,15 @@
+import React from 'react';
+import type { IconProps } from '../types';
+
+export const Clipboard = (props: IconProps) => (
+  <svg
+    xmlns="http://www.w3.org/2000/svg"
+    fill="currentColor"
+    viewBox="0 0 24 24"
+    {...props}
+  >
+    <path d="M6 22v-16h16v7.543c0 4.107-6 2.457-6 2.457s1.518 6-2.638 6h-7.362zm18-7.614v-10.386h-20v20h10.189c3.163 0 9.811-7.223 9.811-9.614zm-10 1.614h-5v-1h5v1zm5-4h-10v1h10v-1zm0-3h-10v1h10v-1zm2-7h-19v19h-2v-21h21v2z" />
+  </svg>
+);
+
+export default Clipboard;