Add working removal

karaokatalog/deduplicate/instructions/DeleteInstruction.py

@@ -1,5 +1,6 @@
 from dataclasses import dataclass
 from pathlib import Path
+import shutil
 
 from karaokatalog.deduplicate.instructions.Instruction import Instruction
 
@@ -16,4 +17,4 @@ class DeleteInstruction(Instruction):
         try:
             self.path_to_delete.unlink()
         except IsADirectoryError:
-            self.path_to_delete.rmdir()
+            shutil.rmtree(self.path_to_delete)