Release cruiser-2.0

• Template engine
• Theme updates, new default theme and dark theme
• New logo and icons
• Support for servers without mod_rewrite
• Configurable extensions, better hooks
• Search improvements
• User language selector
• Password security improvements
• Accounts can now be deleted in bulk by IP address
• A parent site can now be linked in the forum’s pagination
• Russian translation (from @cosmopolityan)
• Persian translation (from @abdulhalim)
• Bug fixes
• Quality-of-life updates
• Security fixes
• More robust, user-friendly installer
• Avatar uploader supports webp format