Update translations and add trial eligibility in plan picker

Added translations in "plan-picker" for better localization support. Introduced a new functionality to check trial eligibility where existing customers can't start a trial. Removed unnecessary billing line items like 'per-seat' and 'metered'. Also, made significant changes in multiple files to align with the updated internationalization best practices. The changes aim to make application more user-friendly across different locales and provide accurate trial period conditions.

apps/web/app/(dashboard)/home/(user)/billing/page.tsx

@@ -42,7 +42,7 @@ async function PersonalAccountBillingPage() {
         <div className={'flex flex-col space-y-8'}>
           <If
             condition={subscription}
-            fallback={<PersonalAccountCheckoutForm />}
+            fallback={<PersonalAccountCheckoutForm customerId={customerId} />}
           >
             {(subscription) => (
               <CurrentPlanCard