Fix incorrect class_name declarations being swapped with extends

This was caused by an automatic text replacement issue.

misc/2.5d/addons/node25d/y_sort_25d.gd

@@ -4,8 +4,8 @@
 # sorting is delayed by one frame.
 @tool
 @icon("res://addons/node25d/icons/y_sort_25d_icon.png")
-class_name Node # Note: NOT Node2D, Node25D, or Node2D
-extends YSort25D
+class_name YSort25D
+extends Node  # NOTE: NOT Node2D, Node25D, or Node2D
 
 
 # Whether or not to automatically call sort() in _process().

misc/2.5d/assets/player/player_math_25d.gd

@@ -1,5 +1,5 @@
 # Handles Player-specific behavior like moving. We calculate such things with CharacterBody3D.
-class_name PlayerMath25D # No icon necessary
+class_name PlayerMath25D  # No icon necessary
 extends CharacterBody3D
 
 var vertical_speed := 0.0

misc/joypads/remap/joy_mapping.gd

@@ -1,5 +1,5 @@
-class_name RefCounted
-extends JoyMapping
+class_name JoyMapping
+extends RefCounted
 
 enum Type {
 	NONE,