feat: game flow draft 2; time machine first draft

components/GameTab.vue

@@ -4,7 +4,7 @@
     :class="[colorClasses, { active }]"
     :to="tabData.route"
   >
-    <span v-if="!tabData.locked" :class="tabData.label" />
+    <span v-if="tabData.unlocked" :class="tabData.label" />
     <span v-else class="fas fa-lock" />
   </nuxt-link>
 </template>

components/ProgressButton.vue

@@ -17,6 +17,7 @@
       /
       <span v-if="unit === 'apprenticeLevels'">L</span>{{ maxText }}
       <span v-if="unit === 'spareTime'" class="fas fa-hourglass-half" />
+      <span v-if="unit === 'energy'" class="fas fa-bolt" />
     </span>
 
     <span