Ubuntu: CTRL + SHIFT + UP doesn't work as expected

[djordjeandrejevic]

CTRL + SHIFT + UP keyboard combination doesn't work as expected in Simplenote 2.0.0 on Ubuntu.

Steps to reproduce

1. Create a list
2. Place mouse pointer somewhere on the last list item
3. Press CTRL + SHIFT + UP multiple times

Expected

Standard highlighting as seen on the screenshot below (Windows 10).

Observed

Multiple pointer lines appeared.

P.S. I haven't tested this with CTRL + SHIFT + DOWN combination, but I assume it's the same as with UP.

OS Version	App Version
Ubuntu 18.04 LTS	Simplenote 2.0.0

[codebykat]

I can reproduce this on the Monaco playground.

#2428 disables those shortcuts, but it doesn't seem to restore the native selection behavior. I wonder if it's because there's not an underlying text area? We might not be able to fix it without a patch to Monaco (the upstream editor component).

[codebykat]

Will be fixed in 2.2