do not confirm answer 0 on startup new fix

client/index.js

@@ -379,7 +379,7 @@ const actions = {
   stopPreview: () => ({ previewSlideId: -1 }),
   setAnswer: (value) => (state, actions) => {
     if (state.kind === 'OFFLINE') {
-      if (!state.started) {
+      if (!state.slides.length) {
         return { answer: value }
       }
       let shuffledId = state.shuffledSlidesIndex[state.currentFreeSlideId];