Updated "Code - OSS" icon for macOS Big Sur

[LcJuves]

This PR fixes visual inconsistency under macOS Big Sur

[miguelsolorio]

Thanks for submitting the PR! It would be great if we could get the OSS shape and shadows to match our regular ones:

Let me know if you need a Figma file and I can share ours

[LcJuves]

However, my icon design template was downloaded from Apple’s official website, and there should not be any uneven shape and shadows.

The corresponding website and design resource links are as follows:

• https://developer.apple.com/design/resources
• https://devimages-cdn.apple.com/design/resources/download/macOS-11-Sketch.dmg

Oh, what's wrong~
Finally, I still hope you can share the Figma file, let us design a better Code - OSS icon for macOS Big Sur.

[miguelsolorio]

We'd prefer to have all of our icons match, here's a sample of our Figma template that we used. I dropped a sample icon that you can replace.

[LcJuves]

Okay, here is the final design draft.
The SVG of the center icon is here.

The final effect is as follows:

[miguelsolorio]

Since we're already in endgame for this release I'm marking this for June

[LcJuves]

Okay, I have merged the behind commits

[miguelsolorio]

@LiangchengJ reviewing this again and I'm seeing the drop shadow come through the middle of the shape, which isn't pretty. Do you mind updating it to fix that? my original sample has an example of this

[LcJuves]

Okay, no problem~
Let's see how this one:
Figma

@misolori

[miguelsolorio]

Awesome, this looks good to me!