Add LTS notification - v10 storybook

[guidari]

Closes #14765

I've tested each default story, and they all appear to be working well. However, when it comes to the UIShell, there's an issue with the sticky/fixed header. I'm considering the best course of action, which might involve excluding the UIShell from the LTS notification, to prevent any additional problems when working with that particular story.

Changelog

New

• Added LTS notification

Testing / Reviewing

• Check if the design looks good
• Check if the components looks good

OBS: The message it is just an example, we are still selecting the best one.

[tay1orjones]

Overall I think it's fine if this doesn't show up on the uishell stories for now, this will hit the vast majority of users being on every other component.

[alisonjoseph]

Overall looks good, the link color is wrong for a black background, so may want to get a designer to take a look. Could be easiest to match what we have on the website banner style-wise?

[guidari]

Overall looks good, the link color is wrong for a black background, so may want to get a designer to take a look. Could be easiest to match what we have on the website banner style-wise?

Could be something like this, to match the website style.

stale