Saves the page after a block is deleted of reordered.
Changes the buttons (and button actions) when a draft is being edited.
Adds a message when editing a draft.
Simplify add action as we only add one block in the add action after which the page is automatically saved.
Checks if the page record is filled and redirects if needed.
Adds an anchor when redirecting after form submission to jump to the right page position box.
Seperates the widgets and module actions so the unexperienced user has to dig deeper to add a full module to a page, an action which they won't perform very often.
Saves the page after page visibility toggle.