FR: Multiple end actions // Split start/end actions

[garrett-is-a-swann]

Story: Some apps are launchers that themselves spawn various different processes. Allow a user to specify their config as example:

{
  Start: [Steam.exe],
  End: [
    { type: Kill, process: Terraria.exe },
    { type: Kill, process: DwarfFortress.exe },
    ...
  ],
  ...
}

Note: I believe this also solves the discord issue of a different starter.exe/process name...? Mmm, maybe not. It would if the start command allowed you to specify CLI args, but afaik currently it does not... FR for that here: #3 No, it does I believe. Description of the reasoning on #4