Error when trying to save to subfolder

[BlenderDefender]

Describe the bug Using Auto Setup, Subfolders are created, but the subfolder added to the Blender File path seems to be a raw string and not converted to path, resulting in an issue.

To Reproduce Steps to reproduce the behavior:

1. Go to the addon preferences
2. Set one Folder to be a folder path with a subfolder (Folder>>Subfolder)
3. Restart Blender, so the changes take affect
4. Go to the "Blender Project Starter" panel
5. Set the Blender Target Location to the Subfolder Path
6. Click on "Build Project"
7. See error

Expected behavior The addon saves the Blender File to the selected subfolder

Expected Fix In the get subfolder function, Convert the Output to path.

Error Warning location: :-1 Error: Python: Traceback (most recent call last): File "/home/blenderdefender/.config/blender/2.91/scripts/addons/blender_project_starter-multi_folder_support/operators.py", line 87, in execute save_file(context, filename, subfolder) File "/home/blenderdefender/.config/blender/2.91/scripts/addons/blender_project_starter-multi_folder_support/functions/main_functions.py", line 91, in save_file relative_remap=context.scene.remap_relative File "/snap/blender/65/2.91/scripts/modules/bpy/ops.py", line 132, in call ret = _op_call(self.idname_py(), None, kw) RuntimeError: Error: Cannot open file /home/blenderdefender/My_Project/Bilder und Texturen>>Renderergebnisse/File.blend@ for writing: No such file or directory

Desktop (please complete the following information):

• OS: [Linux]
• Blender Version [2.91]

[BlenderDefender]

Fixed, but the issue remains open until the development branch is merged into master.