Show encouraging message if no spots nearby

[lawriecate]

If no spots exist within x km of the user, we send some kind of message and suggest them to add refill spots

### Description

If no spots exist within x km of the user, we send some kind of message and suggest them to add refill spots

### User Journey

1. User opens mymizu web and looking on the map, but there is no refill spots nearby.
2. Display a message encouraging user to add new refill spot

### Specs

Example text: “We’ve noticed that there are no refill spots close to you. Would you like to add a new refill spot?”

[be-anna]

Please check notion link for more details:
https://mymizu.notion.site/Show-encouraging-message-if-no-spots-nearby-dba1ed7aed1444258382f241eee7f31f