Add expand and fade-in animations to conditional form sections

Add smooth animations to form sections that appear when toggles are enabled, improving user experience with visual feedback.

Changes:
- Add expandFadeIn keyframe animation to Tailwind config
- Apply expand-fade-in animation to UserSettingsForm payment sections
- Apply expand-fade-in animation to LocationEditForm conditional fields
- Update account page HomeIcon color from green to white for consistency

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/[locale]/home/account/page.tsx

@@ -17,7 +17,7 @@ const Page: FC = async () => {
                 <div className="card card-compact card-bordered min-w-[20em] max-w-[90em] bg-base-100 shadow-s my-1">
                     <div className="card-body">
                         <h2 className="card-title"><AccountCircle /> {t('title')}</h2>
-                        <Link href={`/${locale}/home`} className='btn btn-neutral'><HomeIcon className='text-green-300' /> {t('goto-home-button-label')}</Link>
+                        <Link href={`/${locale}/home`} className='btn btn-neutral'><HomeIcon className='text-white'/> {t('goto-home-button-label')}</Link>
                         <Link href={`/${locale}/home/account/settings`} className='btn btn-neutral'><SettingsIcon className='text-blue-400' /> {t('goto-settings-button-label')}</Link>
                         <LogoutButton />
                     </div>