fix(a11y): hide Fail icon from screen readers (#60157)

client/src/assets/icons/fail.tsx

@@ -10,6 +10,7 @@ function RedFail(): JSX.Element {
       viewBox='0 0 200 200'
       width='50'
       xmlns='http://www.w3.org/2000/svg'
+      aria-hidden='true'
     >
       <g>
         <title>{t('icons.fail')}</title>

client/src/templates/Challenges/classic/lower-jaw.tsx

@@ -140,7 +140,7 @@ const LowerJawTips = ({
         className='test-status fade-in'
         aria-hidden={showFeedback}
       >
-        <Fail aria-hidden='true' />
+        <Fail />
         <p>{learnEncouragementText}</p>
       </div>
       <div