Fix events for added components
Fix events for added components

Not sharing the _context variable with the machine action fixes signals and events being sent to the additional components.

CURA-2277 and CURA-2276

hmflash/Cura,ynotstartups/Wanhao,Curahelper/Cura,hmflash/Cura,fieldOfView/Cura,Curahelper/Cura,fieldOfView/Cura,ynotstartups/Wanhao