feat(renderer): implement Drop trait for resource cleanup

Ensured that the Logical Device, Debug Messenger, and Instance are destroyed in the correct reverse order when the Renderer is dropped. Added documentation for the cleanup process.

crates/renderer/src/lib.rs

@@ -175,6 +175,21 @@ impl Renderer {
     }
 }
 
+/// Ensures all Vulkan resources are destroyed in the correct order.
+impl Drop for Renderer {
+    fn drop(&mut self) {
+        unsafe {
+            self.device.destroy_device(None);
+
+            if let Some(utils) = &self.debug_utils {
+                utils.destroy_debug_utils_messenger(self.debug_messenger, None);
+            }
+
+            self.instance.destroy_instance(None);
+        }   
+    }
+}
+
 /// The callback function invoked by Vulkan's validation layers.
 ///
 /// This function translates Vulkan debug messages into `tracing` events.