Moved worker handling code from App.js to WorkerWaiter.js

src/core/operations/Hexdump.js

@@ -92,7 +92,7 @@ const Hexdump = {
         const w = (width - 13) / 4;
         // w should be the specified width of the hexdump and therefore a round number
         if (Math.floor(w) !== w || input.indexOf("\r") !== -1 || output.indexOf(13) !== -1) {
-            if (app) app.options.attemptHighlight = false;
+            if (self) self.setOption("attemptHighlight", false);
         }
         return output;
     },