fix(payments-next): Missing Manage CTA on SubMan page when no payment method

Because:

* When a user has an issue with their payment method on the subscription management page, they should be shown a warning prompt informing them of this issue, and they should see an option to manage their payment method.

This commit:

* Adds this functionality when a user has free trials.

Closes #[](https://mozilla-hub.atlassian.net/browse/PAY-3638)

Author: elizabeth-ilina

apps/payments/next/app/[locale]/subscriptions/manage/page.tsx

@@ -155,7 +155,7 @@ export default async function Manage({
 
       {isStripeCustomer &&
         !defaultPaymentMethod &&
-        subscriptions.length > 0 && (
+        (subscriptions.length > 0 || trialSubscriptions.length > 0) && (
           <Banner variant={BannerVariant.Warning}>
             <div className="leading-6 text-base">
               <p className="font-bold">
@@ -418,7 +418,7 @@ export default async function Manage({
               )}
 
             {isStripeCustomer &&
-              (defaultPaymentMethod || subscriptions.length > 0) && (
+              (defaultPaymentMethod || subscriptions.length > 0 || trialSubscriptions.length > 0) && (
                 <>
                   <div
                     className="border-none h-px bg-grey-100 my-5 tablet:my-8"