Inconsistent behaviour of `Esc` on keyboard

[schweigisito]

Initial Checklist

• I understand this is a bug report and questions should be posted in the Community Discussions
• I searched issues and couldn’t find anything (or linked relevant results below)

Bug Description

Pressing Esc button on keyboard doesn't behave consistently when editing or previewing a file.

Reproduction Steps

• Create new .md file
• Press Esc
  => OC UI closes the editor and returns to the folder view
• Open the previously created file again and edit it
• Press Esc
  => You will get asked whether to save your changes
• Save your changes
• Press Esc
  => Editor is not closed

Expected Outcome

Esc always either closes the editor or file preview or asks for saving changes before.

Actual Outcome

Once a file has been edited Esc doesn't close the editor anymore even if changes have already been saved.