[docs] Tweak the "Edit this page" button icon

[danilo-leal]

• I have followed (at least) the PR section of the contributing guide.

This PR was originally tweaking both the icon of the "Edit this page" button and its positioning of it. But after Gerda's comment bellow, I figured we could benefit from more exploration (which is better done on Figma) and, therefore, am reducing this to just changing the icon ⎯ super simple.

• Before: https://mui.com/joy-ui/getting-started/overview/
• After: https://deploy-preview-37142--material-ui.netlify.app/joy-ui/getting-started/overview/

[gerdadesign]

Thanks Danilo! Couple thoughts:

• I love the addition of the GitHub icon to indicate where you will go. 👏
• I'm curious if changing the alignment makes it less discoverable, though? Unless that is the intended outcome?
  • We do have a comment button aligned to the right of each section.
• Additionally, these are all different styles of buttons, so I added in the chart below a potential third option:
  • making the button styles consistent with each other on the page
    • although noting that they're not exactly consistent with the entire system right now
  • keeping the right alignment since they are all categorically related to feedback
    • though I think there is room to explore a wholly different positioning in the overall layout if we wanted to increase the scope of this PR
  • keeping the icon change

Current	Solution 1	Solution 2

LMK what you think about this!

[danilo-leal]

@gerdadesign love it ⎯ thanks for the comment and review! As we've talked about, I've reduced this PR to tweaking just the icon, which seems like a safer move now!

[mui-bot]

Netlify deploy preview

https://deploy-preview-37142--material-ui.netlify.app/

Bundle size report

No bundle size changes

Generated by 🚫 dangerJS against c576a3a