Quick Editor: Add presentation styles

[pinarol]

Closes https://github.com/Automattic/Gravatar-SDK-iOS/issues/376

Description

We allow passing presentationDetents. Unfortunately they are supported only + iOS16 so I had to duplicate some code :(

Introduces different presentation styles.

Pre iOS 16

• The system doesn't allow us to set the bottom sheet height and we can only display full size sheets. So we only allow for the vertically scrolling grid.

iOS 16.0 +

• Vertical grid Presentation options:
  • large: full size sheet
  • expandableMedium: starts with a fractional height but can be expanded to full height. the fraction is by default 0.7 but it can be adjusted by the 3rd party developer. The behavior of whether we should prioritize scrolling over expanding is also adjustable.

https://github.com/user-attachments/assets/9bd85995-9312-4d9b-bedd-a22f38c98449

• Horizontal grid Presentation options:
  • intrinsicHeight: as the name tells.

https://github.com/user-attachments/assets/718ceb3d-8adc-4255-b8b4-7b40ebe5862c

---

If the width is not compact(like in iPads) the system displays a full height sheet so we always show the vertical grid:

Testing Steps

SwiftUI demo app > Avatar picker view > select different layout options.

[wpmobilebot]

📲 You can test the changes from this Pull Request in Gravatar UIKit Prototype Build by scanning the QR code below to install the corresponding build.

	App Name	Gravatar UIKit Prototype Build
	Build Number	1205
	Version	1.0
	Bundle ID	com.automattic.gravatar-sdk-demo-uikit.prototype-build
	Commit	f6cf927df3f973b6ee1f068c253507d3af887e20
	App Center Build	Gravatar SDK Demo - UIKit #101

Automatticians: You can use our internal self-serve MC tool to give yourself access to App Center if needed.

[wpmobilebot]

📲 You can test the changes from this Pull Request in Gravatar SwiftUI Prototype Build by scanning the QR code below to install the corresponding build.

	App Name	Gravatar SwiftUI Prototype Build
	Build Number	1205
	Version	1.0
	Bundle ID	com.automattic.gravatar-sdk-demo-swiftui.prototype-build
	Commit	f6cf927df3f973b6ee1f068c253507d3af887e20
	App Center Build	Gravatar SDK Demo - SwiftUI #100

Automatticians: You can use our internal self-serve MC tool to give yourself access to App Center if needed.

[pinarol]

I think this is ready for review. @etoledom