Easy-mde doesn't work well with inputStyle: 'contenteditable'

[A-312]

#143 Introduce inputStyle: 'contenteditable'

I experienced some weird bugs with easy-mde (getCursor and setCursor didn't work fine). I have figured out why: inputStyle: 'contenteditable' doesn't work as well than inputStyle: 'textarea'. https://discuss.codemirror.net/t/is-the-textarea-inputstyle-going-to-be-deprecated-in-the-future/1278

Work well with inputStyle: 'textarea'

Don't work well with inputStyle: 'contenteditable'

(don't work well because the mouse go on the begining after a click)

[mxgl]

I may be wrong here, but I've dealt with a similar issue trying to get zurb/tribute integrated with easyMDE.

It seems when anything not native to codemirror occurs, the cursor location isn't preserved.

I've had to do a getCursor, then do my action, followed by a setCursor. This has worked well enough, but is not perfect.

the issue is more with CodeMirror's cursor positioning in contenteditables.

[A-312]

I made a fix on codemirror codemirror/codemirror5#6168 but I think we have to set options.forceFocus to true like this:

editor.setSelection({line:0, ch:2}, {line:0, ch:5}, {forceFocus:true}).