Incendiary projectiles and lava firestack reduction (#23479)

* Firestack reduction and FireStackOnHit added

* Slight lava tweak

* Remove component and tweaked incendiary pellets

* Incendiary grenade tweak

* Now ignites on projectile fixture or ignition fixture + incendiary grenade tweak

* flare shells now  ignite entities again

* Comment

* undo flare gun ignite

Content.Server/Tiles/LavaComponent.cs

@@ -19,5 +19,5 @@ public sealed partial class LavaComponent : Component
     /// How many fire stacks are applied per second.
     /// </summary>
     [ViewVariables(VVAccess.ReadWrite), DataField("fireStacks")]
-    public float FireStacks = 2f;
+    public float FireStacks = 1.25f;
 }