Resolve "Icon for breaks is not helpful"

Closes #8 (closed)

aleksis/apps/lesrooster/frontend/components/lesson_raster/SlotCard.vue

@@ -41,7 +41,7 @@ export default defineComponent({
       <v-card-text class="d-flex align-center">
         <v-col cols="4" class="text-h4">
           <span v-if="item.model === 'Slot'">{{ item.period }}</span>
-          <v-icon v-else>mdi-timer-sand-paused</v-icon>
+          <v-icon v-else>mdi-timer-sand</v-icon>
         </v-col>
 
         <v-col cols="6">