Reserve a stable block for the empty/loading state (matching the NoResult
height) and fade the empty state in, so entering a list page no longer jumps
between spinner, empty result, and rows. Apply scroll-table to the antd main
lists and pass emptyMinHeight to the SealTable-based lists.
The per-row user actions menu was hard-wired to a fixed list and any
plugin-contributed control had to sit as a separate trigger beside
the dropdown. Move the seam: plugins now contribute dropdown items
directly via `users.rowActions`, and we dispatch the click to the
plugin entry by key while the host's `handleSelect` keeps owning
the built-in keys.
Each entry is `{ key, labelId, icon?, danger?, show?(user), onClick(user) }`.
For UI state the onClick might need (drawers, modals), plugins can
mount a single `components.UsersPageGlobal` slot that the page now
renders once outside the table — typical pattern is a jotai atom
the rowAction writes to and the global slot reads from.
Drop the side-mounted `PluginExtraFields name="UserRowActions"` and
its surrounding `<Space>`; the action column is back to a single
DropdownButtons with all entries in one menu.
- Add is_active field to user model
- Create SealCheckbox component with clickable container
- Add activation control to user modal
- Display user status in users table
- Add localization strings for activation features
