feat: Added "rainbow-braces" for prismjs

server/modules/rendering/html-codehighlighter/renderer.js

@@ -7,9 +7,8 @@ module.exports = {
       if (codeClasses.indexOf('language-') < 0) {
         const result = hljs.highlightAuto($(elm).text())
         $(elm).addClass('language-', result.language)
-        $(elm).addClass('match-braces') // Ruslan: I don't sure if this line needed or not :)
       }
-      $(elm).parent().addClass('prismjs line-numbers match-braces')
+      $(elm).parent().addClass('prismjs line-numbers match-braces rainbow-braces')
     })
   }
 }