Make PACMANs a little better (#24604)

* PACMAN generators show network load/supply.

This gives more feedback to players that their PACMAN is properly connected and what the network status is (i.e. you don't have enough generators).

* Buff JRPACMAN to 8 kW.

Shifted all power values up by +3 kW.

They're frequently too weak to power even single rooms so they deserve a buff.

* Change unit format helpers number format.

Always displays one digit of precision. This avoids jumping around when a value is changing live.

Content.Shared/Power/Generator/SharedPortableGeneratorComponent.cs

@@ -98,12 +98,17 @@ public sealed class PortableGeneratorComponentBuiState : BoundUserInterfaceState
 {
     public float RemainingFuel;
     public bool Clogged;
+    public (float Load, float Supply)? NetworkStats;
     public float TargetPower;
     public float MaximumPower;
     public float OptimalPower;
     public bool On;
 
-    public PortableGeneratorComponentBuiState(FuelGeneratorComponent component, float remainingFuel, bool clogged)
+    public PortableGeneratorComponentBuiState(
+        FuelGeneratorComponent component,
+        float remainingFuel,
+        bool clogged,
+        (float Demand, float Supply)? networkStats)
     {
         RemainingFuel = remainingFuel;
         Clogged = clogged;
@@ -111,6 +116,7 @@ public sealed class PortableGeneratorComponentBuiState : BoundUserInterfaceState
         MaximumPower = component.MaxTargetPower;
         OptimalPower = component.OptimalPower;
         On = component.On;
+        NetworkStats = networkStats;
     }
 }