Fix/android keyboard map mode workaround (#10064)

* fix: Android, keyboard, map mode, workaround

The `KeyEvent.physicalKey.usbHidUsage` are wrong if using Microsoft
SwiftKey keyboard.

`window.addFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM)` is a workaround for this issue.

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: clear callback on first image

Signed-off-by: fufesou <linlong1266@gmail.com>

* Android disable soft keyboard in remote page if not editing.

Signed-off-by: fufesou <linlong1266@gmail.com>

---------

Signed-off-by: fufesou <linlong1266@gmail.com>

flutter/lib/models/model.dart

@@ -2859,6 +2859,7 @@ class FFI {
           canvasModel.scale,
           ffiModel.pi.currentDisplay);
     }
+    imageModel.callbacksOnFirstImage.clear();
     await imageModel.update(null);
     cursorModel.clear();
     ffiModel.clear();