front pushed f7b29b1 — no article change

The existing draft article "using-folders-to-organize-your-campaigns" already accurately documents all of the merchant-visible behavior introduced in this push: drag-from-table-rows, the drop-to-create-folder zone, touch-device drag (press-and-hold), and the updated delete-folder confirmation wording ("Items inside will not be deleted" — confirmed in en.json). The navigation animation and internal sensor refactors are not merchant-visible behaviors that require help-center coverage. No article change is needed.