fix(site): keep TemplateVersionEditor file tree in sync (#25068) - #26771

(cherry picked from commit 7481e1a)

…xt menu

The cherry-picked "Renaming a file" regression test opened the rename action
through a "File actions" dropdown button that only exists on main, where the
template file tree was refactored to a DropdownMenu. release/2.32 still
triggers file actions from a right-click context menu, so the test failed with
'Unable to find role="button" and name "File actions"'. Adapt the test to open
the context menu instead, keeping the regression coverage intact.

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