Add Sorting for Manually Triggered Flows

Summary Currently, there is no way to control the order of Manually Triggered Flows in Directus. It appears that the flows are sorted by id by default.  that would allow users to customize the order in which manual flows appear in the interface. Basic Example _No response_ Motivation In the current Directus interface, Manually Triggered Flows are automatically sorted by their internal id field. This creates a disorganized and inconsistent user experience, especially for projects that contain a large number of manual flows. Detailed Design I propose the introduction of a sort field (numeric, optional) in the metadata of each Manually Triggered Flow, similar to how sort fields are handled in collections and fields. Requirements L…