fix method of getting data from list model object

examples/launcher/search_result_object/mod.rs

@@ -1,6 +1,7 @@
-use gtk4::glib;
-
 use crate::utils::BoxedSearchResult;
+use gtk4::glib;
+use gtk4::prelude::*;
+use gtk4::subclass::prelude::*;
 
 mod imp;
 
@@ -12,4 +13,13 @@ impl SearchResultObject {
     pub fn new(search_result: &BoxedSearchResult) -> Self {
         glib::Object::new(&[("data", search_result)]).expect("Failed to create Application Object")
     }
+
+    pub fn data(&self) -> Option<pop_launcher::SearchResult> {
+        if let Ok(data) = self.property("data") {
+            if let Ok(search_result) = data.get::<BoxedSearchResult>() {
+                return search_result.0;
+            }
+        }
+        None
+    }
 }