e4ac3ae51c
Replaces ad-hoc TouchableOpacity+styled-Text pairs with a single `<Button>` covering the four variants we actually use (primary, secondary, ghost, destructive), with size (sm/md/lg), loading, disabled, icon, iconPosition, and a style escape hatch. Migrated files: AddMacSheet, AddWindowsSheet, PlanChangeSheet, devices.tsx CTA, settings SubscriptionSheet CTA. Skipped (kept as-is to avoid hostile overrides): auth flow buttons (Google/Apple OAuth with custom SVGs), list-row Touchables, blocker & mail components (separate sweep when those screens come up). paddingVertical default 12 (md) — matches the slimmer-buttons direction we landed on in the devices-page redesign.