refact:disable dragging

[prncvrm]

Fixes #584 (<=== Add issue number here)

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@sashadev-sky
Thanks!

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[sashadev-sky]

awesome thank you!!! Just one thing and then we're ready to merge - this is something we need to update from our end but if you check git status in your console you'll see that the dist/leaflet.distortableimage.js file has been updated again, commit this version to your branch (it wont say 14,000 changes anymore)

[prncvrm]

@sashadev-sky done

[sashadev-sky]

Great thank you! Merging this now.

I ended up re-commiting the dist for you because it was still the one with 14,000 changes. But don't sweat it that's something we need to fix on our end.

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