feat(component): create mobileFriendly prop

[kchu93]

What

Create mobileFriendly prop.

Screenshot

Default button (mobileFriendly not set)

With mobileFriendly Prop true

Fixes #388

[chanceaclark]

A couple notes:

1. I'm not sure mobileFriendly makes for a good API name. Could you come up and propose a list of names instead?
2. This will be a breaking change. Since that's the case you will need to add commit messaging for it so it generates the appropriate changelog.
3. You also need to add the prop to the corresponding PropTable(s).
4. We should also optimize the piece of code (Line 59) that changes for the media query based on the prop.
5. Even though the snapshots will/did get updated, you should go through and manually double-check check to see components using StyleableButton or Button didn't break on each device type.

[kchu93]

Going to close this PR out for now, believe we have just tabled this for now, can always reopen once we have a solid plan.