Graphic glitch/flickering in the view panel during the writing

[anerdev]

Hello, while write in the editor panel the view panel have some flickering glitch.

MacDown 0.7.3 (1008.4) MacOS X 11.6.1

https://user-images.githubusercontent.com/2394272/146677121-616b7ab5-fccf-4d3e-8c9a-6a3a7c6f5a92.mp4

[justinrporter]

I think this is likely a duplicate of #1104.