enhance(dialog): use `MaterialAlertDialogBuilder` (#3491)

* Fix example insets

* Add app-region: drag

* Use `Theme.Material3.DayNight.NoActionBar`

* Re-generate some kotlin files

* Use MaterialAlertDialogBuilder

* Add change file

* Revert back to margin-top: 0.5rem

* Re-generate outdated gradle wrapper from #3039

* Move title bar to its own file

* Fix cancel message