Add 1xp docs announcement section to documentation home page

[mackinziblank]

To announce the new documentation experience being released, we should add this announcement section on the documentation home page.

fyi @javabster

[javabster]

Because this homepage is generated with Sphinx we are somewhat limited in how we can style components that sit within the body of the page. We have 2 options, a Qiskit Card directive or a Qiskit CTA directive:

Qiskit Card Directive - provides the full width box with an image, the entire box is clickable:

Qiskit CTA directive - doesn't have a full width box but has text and a grey button that could include CTA text

@mackinziblank which do you think would be better?

[JulesMurphy]

@javabster I prefer the first option personally, as it is more visually prominent. Is there any way to include link text within the content in option 1?

[javabster]

in option 1 the whole box is a clickable link. I could add whatever text you want within the box, but i don't think i could put a link inside because the whole box is technically a link

[JulesMurphy]

We probably just need to include an arrow icon or something at the end of the text to make it feel more clickable. Does it have a hover state?

[javabster]

Yep!

Screen.Recording.2023-08-09.at.11.02.43.AM.mov