Fix: Changed 'HightLightMarkdown' to 'HighLightMarkdown' (#11803)

### What problem does this PR solve?

Fix: Changed 'HightLightMarkdown' to 'HighLightMarkdown', and replaced
the private component with a public component.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/pages/memory/memory-message/message-table.tsx

@@ -122,7 +122,7 @@ export function MemoryTable({
           cellClassName: 'w-12',
         },
         cell: () => (
-          <div className=" hidden group-hover:flex">
+          <div className=" flex opacity-0 group-hover:opacity-100">
             <Button variant={'ghost'} className="bg-transparent">
               <TextSelect />
             </Button>