Fix double HTML encoding in /diff view#191

PureWeen merged 2 commits intomainPureWeen/PolyPilot:mainfrom

fix/when-using-diff-i-have-the-feeling-that-20260223-0940PureWeen/PolyPilot:fix/when-using-diff-i-have-the-feeling-that-20260223-0940Copy head branch name to clipboard