add issues and prs button

crates/signed_core/src/model.rs

@@ -78,6 +78,13 @@ impl Announcement {
     pub fn addr(&self) -> crate::RepoAddr {
         crate::repo_addr(self.owner, self.id.clone())
     }
+
+    /// The description of the repository, or a default if none is provided.
+    pub fn description(&self) -> SharedString {
+        self.description
+            .clone()
+            .unwrap_or(SharedString::from("No description"))
+    }
 }
 
 #[cfg(test)]