Pressing Esc while dragging a files should cancel creating a linked file

## Prerequisites
- [x] I have searched open and closed issues for duplicates.

## Feature
**Is your feature request related to a problem? Please describe.**
Files creates a linked file when you drag a file in the same folder (or move that file if it's another folder). However, this behavior does not seem to cancelable once you begin dragging.


I pressed Esc while dragging in the screencast above, but a linked file is created against my expected behavior―the behavior is canceled and no linked file is created.

**Describe the solution you'd like**
Pressing Esc while dragging a files should cancel creating a linked file (or moving the file).

**Existing work**
This feature is implemented in Explorer on Windows and I always feel it's useful when you happen to began dragging a wrong file.