* [PM-27675] Integrate dialogs into VaultItemTransferService
* [PM-27675] Update tests for new dialogs
* [PM-27675] Center dialogs and prevent closing with escape or pointer events
* [PM-27675] Add transferInProgress$ observable to VaultItemsTransferService
* [PM-27675] Hook vault item transfer service into browser vault component
* [PM-27675] Move defaultUserCollection$ to collection service
* [PM-27675] Cleanup dialog styles
* [PM-27675] Introduce readySubject to popup vault component to keep prevent flashing content while item transfer is in progress
* [PM-27675] Fix vault-v2 tests