spawner and childspawner components don't remove homeseeker component when entities are detached

 Only a few do it manually from their own functions, which isn't ideal.

This results in a bunch of entities not removing their home, but their home entity has forgotten them, meaning they can't enter it or do much with them, and some behaviors are affected due to checking for homeseeker, causing the entity to get leashed to it or, like with bees, not generate new flowers.

This is fixed on saving and loading the world, as homeseeker isn't saved, so, this really should be addressed to not need to do this. This also doesn't apply to entities that came from a stack, because those are new ones which normally don't inherit any of this info (they could by using Stackable:SetOnDeStack, but still).

Ideally, "ontrapped" and "detachchild" should be both removing homeseeker from the entity ("death" means it won't be relevant, though you could still do it for that one, same with "onremove" though even less likely), and then run the usual behavior with self._onchildkilled.

local function AddChildListeners(self, child)
    self.inst:ListenForEvent("ontrapped", self._onchildkilled, child)
    self.inst:ListenForEvent("death", self._onchildkilled, child)
    self.inst:ListenForEvent("onremove", self._onchildkilled, child)
    self.inst:ListenForEvent("detachchild", self._onchildkilled, child)
end

This doesn't mean they should forget their "home" location, that should still be dictated by being picked up (if applicable) or similar, because "home" locations are often also set when an entity spawns or their brain initializes, which has issues on its own, which I'll make a separate report about.

Also, homeseeker itself could also use an OnRemoveFromEntity function for ease of removal, as simple as this:

function HomeSeeker:OnRemoveFromEntity()
    self:SetHome(nil)
end

Because having to do this is kinda silly:

if inst.components.homeseeker ~= nil then
    inst.components.homeseeker:SetHome(nil)
    inst:RemoveComponent("homeseeker")
end