Rentiva v4.37.3 — CI lint hotfix
A short patch to clear the CI red mark left behind by v4.37.2. A single WPCS sniff — "Opening PHP tag must be on a line by itself" — failed on the v4.37.2 hero template after merge. v4.37.3 refactors the block so the PHP opening tag stands alone. Lint-only — no behaviour change.
