Re-arrange most chunk system patches to front (#8338)

* Re-arrange most chunk system patches to front

Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com>

patches/server/Async-catch-modifications-to-critical-entity-state.patch

@@ -24,9 +24,9 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
  
      private boolean addEntity(T entity, boolean existing) {
 +        org.spigotmc.AsyncCatcher.catchOp("Entity add"); // Paper
-         if (!this.addEntityUuid(entity)) {
-             return false;
-         } else {
+         // Paper start - chunk system hooks
+         if (existing) {
+             // I don't want to know why this is a generic type.
 @@ -0,0 +0,0 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
      }