add command sign blocking

todo: move all these blockings to blackout

src/main/java/dev/plex/listener/impl/BlockListener.java

@@ -2,19 +2,24 @@ package dev.plex.listener.impl;
 
 import dev.plex.listener.PlexListener;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 import dev.plex.util.PlexUtils;
 import net.kyori.adventure.sound.Sound;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.event.ClickEvent;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.Particle;
 import org.bukkit.block.Block;
+import org.bukkit.block.Sign;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.block.BlockBreakEvent;
 import org.bukkit.event.block.BlockPlaceEvent;
+import org.bukkit.metadata.FixedMetadataValue;
 
 public class BlockListener extends PlexListener
 {
@@ -24,6 +29,8 @@ public class BlockListener extends PlexListener
 
     private static List<String> cachedBlockedBlocksConfig = null;
 
+    private static final List<Material> SIGNS = Arrays.stream(Material.values()).filter((mat) -> mat.name().endsWith("_SIGN")).toList();
+
     @EventHandler(priority = EventPriority.LOW)
     public void onBlockPlace(BlockPlaceEvent event)
     {
@@ -57,6 +64,26 @@ public class BlockListener extends PlexListener
             block.setType(Material.CAKE);
             PlexUtils.disabledEffect(event.getPlayer(), block.getLocation().add(0.5,0.5,0.5));
         }
+
+        if(SIGNS.contains(block.getType()))
+        {
+            Sign sign = (Sign) block.getState(false);
+            boolean anythingChanged = false;
+            for (int i = 0; i < sign.lines().size(); i++)
+            {
+                Component line = sign.line(i);
+                if(line.clickEvent() != null)
+                {
+                    anythingChanged = true;
+                    sign.line(i, line.clickEvent(null));
+                }
+            }
+            if (anythingChanged)
+            {
+                sign.update(true);
+                PlexUtils.disabledEffect(event.getPlayer(), block.getLocation().add(0.5, 0.5, 0.5));
+            }
+        }
     }
 
     @EventHandler(priority = EventPriority.LOW)

src/main/java/dev/plex/listener/impl/SpawnListener.java

@@ -12,7 +12,6 @@ import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.block.Action;
 import org.bukkit.event.block.BlockDispenseEvent;
-import org.bukkit.event.entity.CreatureSpawnEvent;
 import org.bukkit.event.entity.EntitySpawnEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.inventory.ItemStack;
@@ -23,7 +22,7 @@ import java.util.List;
 
 public class SpawnListener extends PlexListener
 {
-    public static final List<Material> SPAWN_EGGS = Arrays.stream(Material.values()).filter((mat) -> mat.name().endsWith("_SPAWN_EGG")).toList();
+    private static final List<Material> SPAWN_EGGS = Arrays.stream(Material.values()).filter((mat) -> mat.name().endsWith("_SPAWN_EGG")).toList();
 
     @EventHandler
     public void onEntitySpawn(EntitySpawnEvent event)