* rfc: migrate app settings as part of export/import/migration
* export/import app settings
* test, fix
* chat: store app settings in db (#3834)
* chat: store app settings in db
* add combining with app-defaults
* commit schema
* test with tweaked settings
* remove unused error
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Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>
* remove app settings from export/import
* test, more settings
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Co-authored-by: Alexander Bondarenko <486682+dpwiz@users.noreply.github.com>
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