Open create-flow method modals with editable fields and tertiary default copy.

Seeded section text should look like the form default state, not locked primary, and Customize stays on the kebab instead of unlocking the body.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/(app)/create/screens/card/MembershipMethodsScreen.tsx

@@ -214,7 +214,7 @@ export function MembershipMethodsScreen() {
             methodId: pendingCardId,
             meta: state.customMethodCardMetaById,
             fieldBlocksById: state.customMethodCardFieldBlocksById,
-            modalEditUnlocked: false,
+            modalEditUnlocked: true,
             draftFieldBlocks,
             customFacetDetailsMatchPreset,
           }),