Add a web extension and debian package compilation (#5)

Reviewed-on: #5
Co-authored-by: Julien Fastré <julien.fastre@champs-libres.coop>
Co-committed-by: Julien Fastré <julien.fastre@champs-libres.coop>

src/error.rs

@@ -3,7 +3,7 @@ use reqwest::Error;
 
 #[derive(Debug)]
 pub struct GeneralError {
-    pub(crate) description: String,
+    pub description: String,
 }
 
 impl From<InvalidHeaderValue> for GeneralError {