Refused maintenance generation

- A chunk is refused while Folia world maintenance forbids mantle stages
- Such chunks no longer end up missing objects, caves, deposits or their REAL flag
- Refused chunks warn at most every 5 seconds
- The overworld mode no longer bypasses mantle stages

adapters/bukkit/plugin/src/main/java/art/arcane/iris/world/runtime/BukkitEnginePlatformHooks.java

@@ -189,7 +189,7 @@ public final class BukkitEnginePlatformHooks implements EnginePlatformHooks {
     }
 
     @Override
-    public boolean shouldBypassMantleStages(Engine engine) {
+    public boolean shouldRefuseGeneration(Engine engine) {
         if (!J.isFolia() || !engine.getWorld().hasPlatformWorld()) {
             return false;
         }