[TENE-498] Update ComboBoxes so they don't use setDataProvider
Refactored setDataProvider() -> setItems() in grids, comboboxes. Motivation for change (Referrence): https://vaadin.com/docs/v23/upgrading/recommended-changes#replace-deprecated-apis
I did changes in Grid (paginated grid also) even if paginated grid didn't mark these methods as deprecated. Paginated grid extends Grid and Grid has setDataProvider() method marked as deprecated. However, these changes doesn't affect the bussiness logic of PaginatedGrid. I did my tests on local machine and everything works fine. Maybe someone will find something on jira tests stage.