Accessibility attributes added to HelpScout button

Accessibility attributes have been added to the HelpScout component button. This addition will lead to an improvement of the accessibility score of the page where the library is loaded.

Author: lauGutierrezz

src/components/HelpScout/index.tsx

@@ -208,6 +208,9 @@ const HelpScout = ({
       }}
     >
       <button
+        aria-label="Load Chat"
+        aria-busy="true"
+        aria-live="polite"
         onClick={() => loadChat({ open: true })}
         onMouseEnter={() => loadChat({ open: false })}
         style={{