feat: add Clone trait to structs

src/world.rs

@@ -14,14 +14,14 @@ pub fn get_world_location() -> Result<PathBuf> {
     }
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct Packages {
     pub official: Vec<String>,
     pub foreign: Vec<String>,
     pub ignore: Vec<String>,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct World {
     packages: Packages,
 }