Change message when area burned is 0

**Is your feature request related to a problem? Please describe.**
In this example
https://x.com/FogosPt/status/1814578554442596484?t=c9vkihPppHI1jnW1jcIgtQ&s=19
Quando é zero colocar "Sem informação até à data".

**Describe the solution you'd like**
N/A

**Describe alternatives you've considered**
N/A

**Additional context**
N/A
