Add basic Hero component

[olayway]

Component API:

interface HeroProps {
    title: string;
    subtitle?: string;
    announcement?: {
        title: string;
        href?: string;
    };
    buttons?: Array<Button>
}

interface Button {
    title: string;
    href: string;
    type: 'filled' | 'text'
}

With Flowershow's light theme:

With Flowershow's dark theme:

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🦋 Changeset detected

Latest commit: c4bf5bd

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@portaljs/core	Patch

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[olayway]

@rufuspollock Is this what you wanted?

[rufuspollock]

@olayway perfect - i assume if i leave off announcement it doesn't show.

[rufuspollock]

LGTM

[olayway]

@olayway perfect - i assume if i leave off announcement it doesn't show.

Yes, it's optional. The only required thing is the main title.