Restore replaced spaces in clipboard content on Webkit-based browsers
Restore replaced spaces in clipboard content on Webkit-based browsers

FIX: Work around an issue where Chrome and Safari will replace some spaces with non-breaking
spaces when putting HTML on the clipboard.

See https://discuss.prosemirror.net/t/non-breaking-spaces-being-added-to-pasted-html/3911

ProseMirror/prosemirror-view