Fix toast spacing

[cloudyonthemic]

Description

This pull request addresses the issue of customizing the spacing between toasts in both the default and New York themes of the Toast component.

Changes:

• Added a gap prop to the Toast component.
• Users can now customize the gap between individual toasts by passing a value to the gap prop.
• The default value for gap is 1rem to ensure the toasts are spaced out properly by default.

Themes Affected:

• Default theme
• New York theme

This allows for better control over the visual layout of multiple toasts on the page without requiring any changes to the component's core code.

Related Issue

• Issue

How to Test

1. Implement the Toast component in your project.
2. Pass a gap prop with a custom value to the Toast component (e.g., gap="2rem").
3. Observe that the spacing between toasts has been adjusted as per the given value.

Usage

Before

Previously, users could not customize the spacing between toasts. The toasts were rendered with a default, fixed gap.

After

<Toaster gap="2rem" />

[vercel]

@cloudyonthemic is attempting to deploy a commit to the shadcn-pro Team on Vercel.

A member of the Team first needs to authorize it.

[cloudyonthemic]

@shadcn Thoughts on this?