feat: Fluent UI Outlook Lite + connections mockup

node_modules/@fluentui/react-positioning/README.md

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+# @fluentui/react-positioning
+
+A React utilities built on top of [Floating UI](https://floating-ui.com/) for positioning elements in the DOM.
+
+## Usage
+
+```tsx
+import * as React from 'react';
+import { usePositiniong } from '@fluentui/react-positioning';
+
+const PopupExample: React.FC = ({ children }) => {
+  const { targetRef, containerRef } = usePositiniong();
+  const [open, setOpen] = React.useState(false);
+
+  const onClick = () => setOpen(s => !s);
+  return (
+    <>
+      <button ref={targetRef} onClick={onClick}>
+        Toggle popup
+      </button>
+      {open && <div ref={containerRef}>{children}</div>}
+    </>
+  );
+};
+```