Add minimum position for covers

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Checklist

• [X] I have filled out the template to the best of my ability.
• [X] This only contains 1 feature request (if you have multiple feature requests, open one feature request for each feature request).
• [X] This issue is not a duplicate feature request of previous feature requests.

Is your feature request related to a problem? Please describe.

When sun is detected and weather is summer, the covers close completely even though it's not necessary to close it completely

Describe the solution you'd like

A minimum position value that works the same as the maximum position that allows a cover to close at a max position.

Describe alternatives you've considered

Openning manually

Additional context

No context