* Add TTL expiration & migrate some components in channel details
* Migrate button
* Update fixtures
* Add changeset
* Typo & lint
* Reorder UI elements
* Set custom height to match old input
* Add explanatory comment
* test - created test for expired orderes functionality in channels, fixed validation test which checks using same slug twice when creating channel
* Fix create page
* Fix lint issue
* Fix error handling double notification
* tests added: creating channel with expiration days for orders, creating channel with expiration days for orders with boundary conditions exciding requirements
* function name typeExpirationDate changed to typeExpirationDays
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Co-authored-by: wojteknowacki <wojciech.nowacki@saleor.io>
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