Refactor serialization copying to use source generators (#19412)

Content.Server/Chemistry/ReagentEffects/StatusEffects/GenericStatusEffect.cs

@@ -15,7 +15,7 @@ namespace Content.Server.Chemistry.ReagentEffects.StatusEffects
     ///     Can be used for things like adding accents or something. I don't know. Go wild.
     /// </remarks>
     [UsedImplicitly]
-    public sealed class GenericStatusEffect : ReagentEffect
+    public sealed partial class GenericStatusEffect : ReagentEffect
     {
         [DataField("key", required: true)]
         public string Key = default!;

Content.Server/Chemistry/ReagentEffects/StatusEffects/Jitter.cs

@@ -9,7 +9,7 @@ namespace Content.Server.Chemistry.ReagentEffects.StatusEffects
     ///     This doesn't use generic status effects because it needs to
     ///     take in some parameters that JitterSystem needs.
     /// </summary>
-    public sealed class Jitter : ReagentEffect
+    public sealed partial class Jitter : ReagentEffect
     {
         [DataField("amplitude")]
         public float Amplitude = 10.0f;