Update UI style and enhance billing services

Several changes have been made in this commit. Firstly, updates have been made to the site-header-account-section and the pricing-table components to enhance UI aesthetics. Secondly, billing services have been significantly improved. A new method for retrieving plan information by an ID has been introduced. This method is available for all strategy services, including Stripe and Lemon-Squeezy. Furthermore, the way context and logging are handled during the billing process has been streamlined for better readability and efficiency.

apps/web/app/(marketing)/_components/site-header-account-section.tsx

@@ -61,7 +61,7 @@ function AuthButtons() {
         <ModeToggle />
 
         <Link href={pathsConfig.auth.signIn}>
-          <Button variant={'ghost'}>
+          <Button className={'rounded-full'} variant={'ghost'}>
             <Trans i18nKey={'auth:signIn'} />
           </Button>
         </Link>