fix(InfiniteScroll): improve accessibility

Author: matthprost

.changeset/smooth-bottles-agree.md

@@ -0,0 +1,5 @@
+---
+"@ultraviolet/ui": patch
+---
+
+Improve `<InfiniteScroll />` accessibility

packages/ui/src/components/InfiniteScroll/__tests__/__snapshots__/index.test.tsx.snap

@@ -6,6 +6,7 @@ exports[`InfiniteScroll > renders correctly  1`] = `
     data-testid="testing"
   >
     <div
+      role="feed"
       style="height: 2.5rem;"
     />
   </div>

packages/ui/src/components/InfiniteScroll/index.tsx

@@ -129,6 +129,7 @@ export const InfiniteScroll = ({
 
   return (
     <Component
+      role="feed"
       ref={containerRef}
       className={className}
       data-testid={dataTestId}