Theme.Material3.* and Theme.MaterialComponents.* are from the
Material view library which is not in the AOSP prebuilts.
The wizard is Compose-only so the XML theme only needs to control
window properties (background, transparent bars). All Material3
colour/typography tokens are applied inside Compose.
Also removes values-v21/v23/v31 overrides — minSdk=31 makes v21/v23
unreachable, and v31 only existed for the removed splash screen dep.
oxmc
ba7dabeb39