Summary: Crisp adds macOS app download and demo links

Why It Matters: The competitor is making it easier for users to access their software on desktop and is pushing more direct sales conversations through demo bookings.

What Changed:

• Added a direct download link for the macOS desktop application.
• Added "Get started for free" and "Book a demo" links to the footer area.
• Updated the website search shortcut text from "⌘K" to "ctrl+k".