fix: Renamed variables for clearness.

src/App.js

@@ -60,10 +60,10 @@ const getLatinSquareOrder = function(participantNumber) {
       continue;
     }
 
-    const el = latinSquareElement[indexElement + 1];
-    const elIndex = findIndexOfOrderElement(el, latinSquareElement);
-    const nextLatinSquareIndex = latinSquareElement[(elIndex)];
-    latinSquareRedirectOrder.push(("study-page-" + nextLatinSquareIndex));
+    const nextOrderElement  = latinSquareElement[(indexElement + 1)];
+    const nextOrderElementIndex = findIndexOfOrderElement(nextOrderElement, latinSquareElement);
+    const nextRedirctElement = latinSquareElement[nextOrderElementIndex];
+    latinSquareRedirectOrder.push(("study-page-" + nextRedirctElement ));
   }
 
   return latinSquareRedirectOrder;