Regexp highlight / serach fix

src/components/Question.js

@@ -4,8 +4,12 @@ function highlightText(text, toHighlight) {
   if (!text) {
     return ''
   }
+  try {
     const re = new RegExp(toHighlight, 'gi')
     return text.replace(re, `<mark>${toHighlight}</mark>`)
+  } catch (e) {
+    return text
+  }
 }
 
 export default function Question({ question, searchTerm }) {