Add secondary option for cover entities

[cdce8p]

Proposed change

Add position and tilt-position for cover as options for secondary_info.

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

# Config
cover:
  - platform: demo

# ui-lovelace
- type: entities
  title: Cover
  entities:
    - entity: cover.hall_window
      secondary_info: position
    - entity: cover.living_room_window
      secondary_info: tilt-position

Additional information

Since last-triggered was added as an option (#4222), I think cover-position and tilt-position are useful as well.

• Link to documentation pull request: Lovelace - add secondary option for cover entities home-assistant.io#13009

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

[bramkragten]

current_position can be 0 I think? So we shouldn't do a falsy check, but check for undefined

Same for tilt.

[cdce8p]

Good point. What do you think about just omitting the check itself? It would then be Position: undefined for not supported covers. This way you would instantly know that your ui-config is wrong.

I'll push the undefined check in a few minutes. Let me know if you should remove them.

[bramkragten]

it won't print undefined