Horizontal Stepperview frame incorrect due to overlayPreferenceValue

[acegreen]

Describe the bug
It seems the frame isn't calculated correctly and this results in weird UI behaviour and having to compensate by adding uneven padding

To Reproduce
Steps to reproduce the behavior:
See screenshot

Expected behavior
Frame to take the full bounds of the StepperView

Screenshots

Even padding:

Uneven padding:

Info (please complete the following information):

• Device: [e.g. Simulator / Real Device]
• OS: [e.g. iOS 13]
• Pod Version [e.g. 2.16]
• Xcode Version [e.g. 11] if applicable

Additional context
Add any other context about the problem here.

[acegreen]

On a similar note, the drawLabel doesn't align center to the indicators.

I'm looking into creating a PR for both issues once I figure out a better way. I want to use VStack to layout the indicator and label below