Support contentWrapperStyle

Editor assessment

The subject states the feature — the Drawer supports `contentWrapperStyle` — under an accurate `feat(drawer)` pairing, naming the component and the exact new prop, so the change is fully understandable without a diff: a styling escape hatch for the drawer's content wrapper. No body is present, which is acceptable for a self-descriptive prop addition under the small-change exemption. Type and scope are exactly right. Footers are absent; none are required. Style hygiene is clean — no trailing period, compact subject, no junk, consistent language. A clear, honest, publishable feature example at the good level.