Fix LiveAnnouncer styles cause page shift (#3807)

Author: snowystinger

packages/@react-aria/live-announcer/src/LiveAnnouncer.tsx

@@ -70,12 +70,12 @@ class LiveAnnouncer {
       border: 0,
       clip: 'rect(0 0 0 0)',
       clipPath: 'inset(50%)',
-      height: 1,
+      height: '1px',
       margin: '0 -1px -1px 0',
       overflow: 'hidden',
       padding: 0,
       position: 'absolute',
-      width: 1,
+      width: '1px',
       whiteSpace: 'nowrap'
     });