Infrastructure: Remove Instructionblock

• Removes instruction Block and let the template manager handle instructions directly

scripts/Infrastructure/Template.py

@@ -314,7 +314,7 @@ class TemplateManager:
         if idx_to_use is None:
             raise IndexError("did not find place to insert")
 
-        self._instructions = self._instructions[1:idx_to_use] + new_instruction + self._instructions[idx_to_use + 1:]
+        self._instructions = self._instructions[0:idx_to_use] + new_instruction + self._instructions[idx_to_use:]
 
     def remove_instruction(self, identifier: str = None, idx: int | typing.List[int] = None,
                            instruction: Instruction | typing.List[Instruction] = None):