Description of the new feature / enhancement
The VS Code plugin can be toggled on even if you don't have VS Code installed. IMO, it should be disabled and grayed out in the settings page, with a message indicating why.
This could be accomplished by a new interface in Wox.Plugin which plugins could implement to report back a status saying whether they can be enabled or not, and if not a string saying why.
Scenario when this would be used?
For the VS Code plugin, and other plugins that depend on the presence of various dependencies. For example, a OneNote plugin would require OneNote installed, the Everything plugin depends on Everything, a Graph plugin would require an MSA logged in, etc.