Black area in exported images
### Expected Behaviour
No black area should appear. Black area comes out in final exported image.
### Reproduction Steps
1. Export an image
2. The image has black borders on the sides
3.
### Device Type
[x] Desktop
[] Mobile
[] Tablet
### Browser
[] Chrome / Chromium
[x] Firefox
[] Safari
[] Edge
### Operating System
[x] MacOS
[] Windows
[] Linux
[] iOS
[] Android