Feat: crash bugfixes

src/bin/desktop/main.rs

@@ -251,9 +251,13 @@ impl CagireDesktop {
         let mut restart_samples = Vec::new();
         self.app.audio.config.sample_counts.clear();
         for path in &self.app.audio.config.sample_paths {
-            let index = doux::sampling::scan_samples_dir(path);
-            self.app.audio.config.sample_counts.push(index.len());
-            restart_samples.extend(index);
+            if path.is_dir() {
+                let index = doux::sampling::scan_samples_dir(path);
+                self.app.audio.config.sample_counts.push(index.len());
+                restart_samples.extend(index);
+            } else {
+                self.app.audio.config.sample_counts.push(0);
+            }
         }
 
         self.audio_sample_pos.store(0, Ordering::Release);