Context menu entries of a plugin can name a submenu on [[contributes.menus]] (editor, Project view, editor tab and view item menus; API 1.3): entries with the same submenu are grouped under it, a submenu with one visible entry stays a plain entry, and the label goes through the plugin's translations. Opt-in rather than by command category, since the category is the Find Action/keymap prefix and many plugins share one across all commands.
Co-authored-by: lidwt721 <[email protected]>
