Add view header

[piitaya]

Proposed change

Add heading section to allow user to place badges and text with template and markdown support at the top of the view.

Features :

• optional heading text with markdown and template support
• optional badges
• 3 layouts :
  • Responsive (default)
  • Always left align
  • Always center align
• 2 badges position :
  • bottom, below text (default)
  • top, above text
• option to add extra top margin.

Migration

Badges from sections view will be migrated to this new section.

Things that still need to be done :

• Create new title/text card instead of using the current markdown card (another PR)
• Improve section editor
• Documentation (for later as some implementation details still need to be discussed)

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue or discussion:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

[silamon]

I've had the width of the card jumping further to the right though when I had no badges anymore.