Nicer `Shape` access in SwiftUI

swiftui-shape-extensions.swift

/**
Before:

```
.clipShape(Rectangle())
```

After:

```
.clipShape(.rectangle)
```
*/

extension Shape where Self == Rectangle {
	static var rectangle: Self { .init() }
}

extension Shape where Self == Circle {
	static var circle: Self { .init() }
}

extension Shape where Self == Capsule {
	static var capsule: Self { .init() }
}

extension Shape where Self == Ellipse {
	static var ellipse: Self { .init() }
}

extension Shape where Self == ContainerRelativeShape {
	static var containerRelative: Self { .init() }
}

extension Shape where Self == RoundedRectangle {
	static func roundedRectangle(cornerRadius: Double, style: RoundedCornerStyle = .circular) -> Self {
		.init(cornerRadius: cornerRadius, style: style)
	}

	static func roundedRectangle(cornerSize: CGSize, style: RoundedCornerStyle = .circular) -> Self {
		.init(cornerSize: cornerSize, style: style)
	}
}