Improved Agreements

New agreement opens on its categories

Internal: the Agreements preview's New agreement drawer lists its categories closed, each opening to its standard agreements as rows.

Internal: in the Agreements preview (site administrators only), New agreement opens on the categories, such as Fundraising and Confidentiality, each with the number of standard agreements in it. Open a category to see its agreements as rows separated by lines, instead of a box around each one. Nothing is chosen in advance, so an agreement is never started from a category that was not opened; selecting Start agreement with nothing chosen opens the first category at the browser's message. Across Magpie, collapsible sections that follow one another are now separated by a line, and a required answer inside a closed section opens that section when the form is sent.