Android: Fix pasting PNG and JPEG images from the clipboard

[personalizedrefrigerator]

Summary

This pull request fixes a regression that caused Joplin to fail to paste image files on Android. (Most testing for #10751 was done on iOS.)

Testing plan

Regression testing

This pull request has been tested by:

1. Opening edit mode on a note.
2. Attaching a PNG or JPEG image.
   • JPEG on iOS, PNG on Android

This has been tested successfully on an iOS 17.4 simulator and an Android 13 device.

Pasting images

On Android 13:

1. Copy a small PNG image from Chrome.
2. Paste the image into Joplin's note editor.
3. Verify that a resource is added.
4. Copy a large PNG image from Chrome.
5. Paste the image into Joplin's note editor.
6. Choose "yes" to decrease the image size.
7. Verify that a resource is added.
8. Switch to the note viewer. Verify that both images render.