feat: add dashboard page

packages/@core/shared/toolkit/src/dom.ts

@@ -0,0 +1,24 @@
+/**
+ * 获取元素可见高度
+ * @param element
+ * @returns
+ */
+function getElementVisibleHeight(
+  element?: HTMLElement | null | undefined,
+): number {
+  if (!element) {
+    return 0;
+  }
+  const rect = element.getBoundingClientRect();
+  const viewHeight = Math.max(
+    document.documentElement.clientHeight,
+    window.innerHeight,
+  );
+
+  const top = Math.max(rect.top, 0);
+  const bottom = Math.min(rect.bottom, viewHeight);
+
+  return Math.max(0, bottom - top);
+}
+
+export { getElementVisibleHeight };