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## Summary
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importantly what they aim to achieve -->
This PR will change the approach of how the app keeps it's data updated
by not subscribing to all state changes and only periodic updating it's
app entities instead.
This will avoid several issues where users experience their app to
freeze due to 9k entities updating every second and notifying the app.
## Screenshots
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## Link to pull request in Documentation repository
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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. -->
f2c35267f3