feat: Backport CustomMobEffect

Author: BlayTheNinth

common/src/main/java/net/blay09/mods/balm/world/effect/CustomMobEffect.java

@@ -0,0 +1,18 @@
+package net.blay09.mods.balm.world.effect;
+
+import net.minecraft.core.particles.ParticleOptions;
+import net.minecraft.world.effect.MobEffect;
+import net.minecraft.world.effect.MobEffectCategory;
+
+/**
+ * No different from a MobEffect, other than having public constructors for convenience.
+ */
+public class CustomMobEffect extends MobEffect {
+    public CustomMobEffect(MobEffectCategory category, int color) {
+        super(category, color);
+    }
+
+    public CustomMobEffect(MobEffectCategory category, int color, ParticleOptions particle) {
+        super(category, color, particle);
+    }
+}