fix(folia): use recommended class for detecting folia (#261)

CONTRIBUTING.md

@@ -91,6 +91,7 @@ This allows the Git history to be more readable and also allows us to generate c
  - `events`, when modifying a file that is related to events.
  - `examples`, when modifying an example.
  - `extensions`, when modifying a file that is related to extensions.
+ - `folia`, when modifying a file inside the `platform-folia` module.
  - `minestom`, when modifying a file inside the `platform-minestom` module.
  - `nukkit`, when modifying a file inside the `platform-nukkit` module.
  - `scheduling`, when modifying a file that is related to scheduling.

platform-folia/src/main/java/dev/hypera/chameleon/platform/folia/FoliaChameleon.java

@@ -123,16 +123,15 @@ public final class FoliaChameleon extends BukkitChameleon {
     }
 
     /**
-     * Check if Folia is present.
+     * Returns whether this server is a Folia server.
      *
-     * @return true if Folia is present.
+     * @return {@code true} if this server is a Folia server.
      */
     private static boolean isFolia() {
         try {
-            // find a better class to use for this?
-            Class.forName("io.papermc.paper.threadedregions.scheduler.AsyncScheduler");
+            Class.forName("io.papermc.paper.threadedregions.RegionizedServer");
             return true;
-        } catch (ClassNotFoundException e) {
+        } catch (ClassNotFoundException ex) {
             return false;
         }
     }