Dont send repeat action

src/main/java/de/zonlykroks/advancedscripts/mixin/KeyboardMixin.java

@@ -21,7 +21,7 @@ public class KeyboardMixin {
     @Inject(method = "onKey", at = @At("HEAD"))
     public void sendKeyPress(long window, int key, int scancode, int action, int modifiers, CallbackInfo ci) {
         MinecraftClient client = ((Keyboard) (Object)this).client;
-        if(client.currentScreen == null) {
+        if(client.currentScreen == null && action != 2) {
             PacketByteBuf byteBuf = new PacketByteBuf(Unpooled.buffer());
             byteBuf.writeInt(key);
             byteBuf.writeByte(action);