Update DamageableSystem to modern standards (#39417)

* Update DamageableSystem to modern standards

* DamageContainerId -> DamageContainerID with lint flag

* Replace strings with protoids

* Make CVar subscription declarations all consistently whitespaced

* ChangeDamage -> TryChangeDamage, cope with C# jank

* Revert event signature changes

* Restore a comment

* Re-add two queries

* Init the queries

* Use appearanceQuery in DamageChanged

* Use damageableQuery in TryChangeDamage

* Use damageableQuery in SetDamageModifierSetId

* Final cleanup, fix sandboxing

* Rectify ExplosionSystem:::ProcessEntity's call to TryChangeDamage

* Re-organize DamageableSystem

* first big fuck you breaking change.

* THATS A LOT OF DAMAGE!!!

* Fix test fails

* test fixes 2

* push it

---------

Co-authored-by: Princess Cheeseballs <66055347+Pronana@users.noreply.github.com>

Content.Server/Administration/Systems/AdminVerbSystem.Smites.cs

@@ -1,6 +1,5 @@
 using Content.Server.Administration.Components;
 using Content.Server.Atmos.EntitySystems;
-using Content.Server.Body.Components;
 using Content.Server.Body.Systems;
 using Content.Server.Electrocution;
 using Content.Server.Explosion.EntitySystems;
@@ -24,7 +23,6 @@ using Content.Shared.Body.Part;
 using Content.Shared.Clothing.Components;
 using Content.Shared.Clumsy;
 using Content.Shared.Cluwne;
-using Content.Shared.Damage;
 using Content.Shared.Damage.Systems;
 using Content.Shared.Database;
 using Content.Shared.Electrocution;
@@ -58,6 +56,7 @@ using Robust.Shared.Spawners;
 using Robust.Shared.Utility;
 using System.Numerics;
 using System.Threading;
+using Content.Shared.Damage.Components;
 using Timer = Robust.Shared.Timing.Timer;
 
 namespace Content.Server.Administration.Systems;