Security hardening: CSP, Referrer Policy, Bunny Fonts, iframe sandbox#252

Copilot wants to merge 2 commits intomainremotehack/remotehack.github.io:mainfrom

copilot/run-security-audit-remotehackremotehack/remotehack.github.io:copilot/run-security-audit-remotehackCopy head branch name to clipboard