refactor(routes): move shared pages to global scope

src/app/subscription/components/subscription-checkout-button.tsx

@@ -23,14 +23,14 @@ export interface SubscriptionCheckoutButtonProps {
   disabled?: boolean;
   subscriptionType: "vip" | "topup";
   returnTo?: SubscriptionReturnTo;
-  characterSlug?: string;
+  sourceCharacterSlug?: string;
 }
 
 export function SubscriptionCheckoutButton({
   disabled = false,
   subscriptionType,
   returnTo = null,
-  characterSlug = DEFAULT_CHARACTER_SLUG,
+  sourceCharacterSlug = DEFAULT_CHARACTER_SLUG,
 }: SubscriptionCheckoutButtonProps) {
   const payment = usePaymentState();
   const paymentDispatch = usePaymentDispatch();
@@ -40,7 +40,7 @@ export function SubscriptionCheckoutButton({
     payment,
     paymentDispatch,
     returnTo: returnTo ?? undefined,
-    characterSlug,
+    characterSlug: sourceCharacterSlug,
     subscriptionType,
   });