🐛 Digital Book Bug Fixes & Branding Update

✅ Long URLs no longer overflow — Pasting a long link inside a Digital Book page used to break the layout. Long links now wrap cleanly inside the page.

✅ "Powered by ElkQR" hidden on more pages — The footer was already hidden on landing pages for paid users, but it still showed on the password-protected screen and a few other system pages. Now consistent across all public pages.

✅ Right-to-left layout for Arabic, Hebrew, Persian, Urdu — Arabic, and other right-to-left content on QR landing pages used to render with English-style left-aligned layout. The page now flips automatically when the content is right-to-left, while English/Spanish/French stay exactly as before.