Using capacityStatus.recordedAt everywhere in order to be consistent

It means that we trust datetime raised by external apps (such as Floxx) but this is more legit if, for instance, there was some delay between the moment red coats raise the stats, and the moment it is properly persisted into firebase

Author: fcamblor

mobile/src/components/rooms/RoomCapacityIndicator.vue

@@ -151,7 +151,7 @@ const sinceLabelRef = computed(() => {
     return { shown: false } as const;
   }
 
-  const sinceMinutes = Math.max(Math.round(now.toInstant().since(capacityStatus.persistedAt).total('minutes')), 0)
+  const sinceMinutes = Math.max(Math.round(now.toInstant().since(capacityStatus.recordedAt).total('minutes')), 0)
 
   return {
     shown: true,