with the new gtl, we don't need to reload the whole screen on selection

thus, the "can only restart 1 worker at a time" logic must move to JS (at least until we start supporting restarting multiple workers)

…orker_id], drop that

this removes `@sb[:selected_worker_id]` completely, in favor of using `checked_or_params` to get the selected worker

the method was called by the old gtl (`gtl/_list`) on row selection,
new GTL uses the standard checked_or_params way

before, `pm_get_workers` would reset `@sb[:selected_worker_id]` and call `get_workers`

nothing else calls `get_workers` directly, and the id is no longer used

merging into 1 method :)

looks like defaulting to current controller on nil, etc. should happen there, not in JS

false means clicking the entry will do nothing
this is achieved by setting showUrl to false,

ReportDataController#onItemClicked already does nothing when showUrl is false

when `initObject.showUrl` is "", the defaults from initComponent kick in

but the logic in onItemClicked ignores clicks when showUrl is falsy

so.. logically, false is the right value

except there's already code which assumes showUrl is always a string - adding explicit checks