Refactor serialization copying to use source generators (#19412)

Content.Server/Weapons/Ranged/Components/BatteryWeaponFireModesComponent.cs

@@ -28,10 +28,10 @@ public sealed partial class BatteryWeaponFireModesComponent : Component
 }
 
 [DataDefinition]
-public sealed class BatteryWeaponFireMode
+public sealed partial class BatteryWeaponFireMode
 {
     /// <summary>
-    /// The projectile prototype associated with this firing mode 
+    /// The projectile prototype associated with this firing mode
     /// </summary>
     [DataField("proto", required: true, customTypeSerializer: typeof(PrototypeIdSerializer<EntityPrototype>))]
     public string Prototype = default!;