Fix: Chat - Link in end of line displays tooltip over text and not on…

… link

Changes from PR review:
  o  Small tidyup.

src/components/Tooltip/index.js

@@ -156,12 +156,11 @@ function Tooltip(props) {
         if (bounds.width === 0) {
             setIsRendered(false);
         }
-        const t = target.current;
         // Choose a bounding box for the tooltip to target.
         // In the case when the target is a link that has wrapped onto
         // multiple lines, we want to show the tooltip over the part
         // of the link that the user is hovering over.
-        const betterBounds = chooseBoundingBox(t, initialMousePosition.current.x, initialMousePosition.current.y);
+        const betterBounds = chooseBoundingBox(target.current, initialMousePosition.current.x, initialMousePosition.current.y);
         setWrapperWidth(betterBounds.width);
         setWrapperHeight(betterBounds.height);
         setXOffset(betterBounds.x);