Reorder buttons in QuizRunner component

client/src/components/QuizRunner.tsx

@@ -434,14 +434,14 @@ export default function QuizRunner({ defaultMode = 'all', defaultEntryId, autoSt
         )}
         {showResult && (
           <>
+            <button className="button button--primary" onClick={goNext}>
+              {currentIndex + 1 === questions.length ? 'Finish' : 'Next'}
+            </button>
             {lastCorrect && !showExplanation && (
               <button className="button button--ghost" onClick={() => setShowExplanation(true)}>
                 Show explanation
               </button>
             )}
-            <button className="button button--primary" onClick={goNext}>
-              {currentIndex + 1 === questions.length ? 'Finish' : 'Next'}
-            </button>
           </>
         )}
       </div>