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## Summary
<!-- Provide a brief summary of the changes you have made and most
importantly what they aim to achieve -->
First iteration of the widget builder, user is able to choose what
entities to display, choose a display text for them, color customization
and "on tap" action.
## Screenshots
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screenshots in light and dark mode. -->
https://github.com/user-attachments/assets/5949322a-a8df-4b3d-aaab-d4ba3853cc84
## Link to pull request in Documentation repository
<!-- Pull requests that add, change or remove functionality must have a
corresponding pull request in the Companion App Documentation repository
(https://github.com/home-assistant/companion.home-assistant). Please add
the number of this pull request after the "#" -->
Documentation: home-assistant/companion.home-assistant#
## Any other notes
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Request is part of a bigger change, please include it here. -->
c028a943da