Support image resized

[alxnbl]

When an image has been resized in OneNote, the image should also be resized in markdown.

[Swaddy33]

I used OneDrive Mobile for many entries, and it added the full picture to the note.
So, in the end I copy/pasted all these large pictures from OneNote to Joplin and it reduced them to 1920 px. Maybe ask the user if it should do that automatically?
Ps: This tool is amazing and better than the new native OneNote ZIP import, thank you!