[Select] Improve vertical alignment

[jedwards1211]

Closes #9826

[jedwards1211]

@oliviertassinari argos thinks there's a visual regression, but this is because the vertical alignment of Selects has been fixed

[oliviertassinari]

but this is because the vertical alignment of Selects has been fixed

@jedwards1211 I don't agree, the Argos shouldn't report any diff. The Select vertical alignment is off by some pixels if you compare it with the Input.

[jedwards1211]

@oliviertassinari but the vertical alignment of Selects in master is wrong; it doesn't always match the vertical alignment of Inputs. So the vertical alignment of Selects needs to change and there will have to be a diff in Argos. Does that make sense? However, I see one case where the alignment of the caret is obviously wrong due to my PR.

[jedwards1211]

@oliviertassinari it does also appear that before my PR the vertical alignments of all these different types of selects was consistent with each other, even if not consistent with inputs, and my PR has broken the consistency between the different selects. I will fix this in my PR.

[oliviertassinari]

@jedwards1211 Thank you :)

[jedwards1211]

Awesome, thanks!