Adjust menu buttons

[iminlikewithyou]

this pull request slightly updates the sizes and positions of the main menu buttons' children to improve the visual balance of the buttons.

current:

updated:

as a consequence of the very slight size increase, the rotation of the bounce was tweaked a bit lower.

[cl8n]

I think the slanted alignment looks kind of awkward in isolation, despite matching the shape of the button itself better. the size bump on the icons seems nice though.

[iminlikewithyou]

it could be better to move both the icon and the text to the left - so that the icon remains directly above the center of the text, and see if that works

but i definitely think that in the current design, it's extremely obvious that the icon and text seems extremely right-shifted

[peppy]

This menu is going away soon, but seems fine to adjust it to read better for now.