gtauri: zero-delay handling for Android MediaStore content watcher events (immediate push)

harnesses/gtauri/src/lib.rs

@@ -1237,10 +1237,18 @@ fn watch_files(app: tauri::AppHandle) {
         };
         let do_full = matches!(woke, Some(WEvent::Full));
         if let Some(WEvent::Fs) = woke {
+            #[cfg(target_os = "android")]
+            {
+                apply_mediasotre_payload(&app);
+                continue;
+            }
+            #[cfg(not(target_os = "android"))]
+            {
                 while rx.try_recv().is_ok() {}
                 std::thread::sleep(std::time::Duration::from_millis(600));
                 while rx.try_recv().is_ok() {}
             }
+        }
         if do_full {
             tr("watch: full rescan (5min)");
             rescan(&app);