Add support for automation description

[emontnemery]

When using the automation editor, any manually added comments are wiped.
Allow adding description string to the automation instead, with the same purpose as a comment.

Depends on backend PR: home-assistant/core#26662

Screenshots:

[SeanPM5]

I really love this idea. Both for this particular use case of remembering logic in your personal automations, but also for the future if we get automation sharing, this would be a great way to describe your shared automation to the community.

I'm just not sure that everyone will know what "Annotation" means? I know it's the correct word but I think that "Description", "Note", or "Comment" might be more easily understandable to a wider group of people IMO.

Also I think that the label and/or placeholder text should make clear that it's optional too.

[emontnemery]

@SeanPM5 OK, have a look at the updated screenshots, maybe better now.
Do you think it should be mentioned in the placeholder that the comment can be multple lines?

Note: Code should also be changed from annotation to comment

[balloob]

I like the idea, but let's call it description.

[emontnemery]

@balloob Fixed!

[balloob]

We might have to do one more frontend release for the final release. As this PR relies on backend code that is not in tomorrows release , we should not merge this yet.