Authorize & Install Grunty (GitHub App) image on Patcher landing page is slightly blurry

[brikis98]

As reported by a user: https://twitter.com/jayanth_s_iyer/status/1430499849770729476

[marinalimeira]

I can work on this one!

[marinalimeira]

@ina-stoyanova @brikis98 some feedback before opening the PR?

[ina-stoyanova]

looks good to me! Looks very sharp! 🦈

[brikis98]

The image looks sharp here, but the key question is how it'll look at the rendered size on the Patcher page. From Chrome webtools, it looks like the image is rendered at 377x482 on the Patcher home page... So we probably want the screenshot to be that exact size.