Tab key don't indents list item in Note

🐛Bugs
#1

Steps to reproduce

  1. Create list item
  2. Switch to Note section (Shift+Enter)
  3. Press Tab key

Expected result

List item indents.

Actual result

Tab symbol is inserted.

Environment

Chromium Version 71.0.3578.98 (Official Build) Arch Linux (64-bit)