feat: Update NeoForge to 1.21

neoforge/src/main/java/net/blay09/mods/gravelminer/NeoForgeGravelMiner.java

@@ -1,20 +1,15 @@
 package net.blay09.mods.gravelminer;
 
 import net.blay09.mods.balm.api.Balm;
-import net.blay09.mods.balm.api.client.BalmClient;
 import net.blay09.mods.balm.neoforge.NeoForgeLoadContext;
-import net.blay09.mods.gravelminer.client.GravelMinerClient;
-import net.neoforged.api.distmarker.Dist;
 import net.neoforged.bus.api.IEventBus;
-import net.neoforged.fml.DistExecutor;
 import net.neoforged.fml.common.Mod;
 
 @Mod(GravelMiner.MOD_ID)
 public class NeoForgeGravelMiner {
     public NeoForgeGravelMiner(IEventBus modEventBus) {
         final var context = new NeoForgeLoadContext(modEventBus);
         Balm.initialize(GravelMiner.MOD_ID, context, GravelMiner::initialize);
-        DistExecutor.runWhenOn(Dist.CLIENT, () -> () -> BalmClient.initialize(GravelMiner.MOD_ID, context, GravelMinerClient::initialize));
     }
 
 }

neoforge/src/main/java/net/blay09/mods/gravelminer/client/NeoForgeGravelMinerClient.java

@@ -0,0 +1,17 @@
+package net.blay09.mods.gravelminer.client;
+
+import net.blay09.mods.balm.api.client.BalmClient;
+import net.blay09.mods.balm.neoforge.NeoForgeLoadContext;
+import net.blay09.mods.gravelminer.GravelMiner;
+import net.neoforged.api.distmarker.Dist;
+import net.neoforged.bus.api.IEventBus;
+import net.neoforged.fml.common.Mod;
+
+@Mod(value = GravelMiner.MOD_ID, dist = Dist.CLIENT)
+public class NeoForgeGravelMinerClient {
+    public NeoForgeGravelMinerClient(IEventBus modEventBus) {
+        final var context = new NeoForgeLoadContext(modEventBus);
+        BalmClient.initialize(GravelMiner.MOD_ID, context, GravelMinerClient::initialize);
+    }
+
+}