Fix incorrect formatting when a declaration immediately follows an extends statement in an inner class

Close #45

Author: NathanLovato

queries/gdscript.scm

@@ -73,6 +73,7 @@
 
 ; CLASS DEFINITIONS
 (class_definition (body) @prepend_hardline @append_hardline)
+(class_definition (body (extends_statement) @append_hardline ))
 (class_name_statement) @append_space
 (class_definition) @prepend_hardline
 (source

tests/expected/class_inner.gd

@@ -42,3 +42,4 @@ class A:
 
 class B:
 	extends A
+	var test = 2

tests/input/class_inner.gd

@@ -27,3 +27,4 @@ class A:
 	extends RefCounted
 class B:
 	extends A
+	var test = 2