feat: Add aider translation support

[josix]

This pull request introduces a new script for handling .po files and updates the Makefile to include a new translation target using the aider-chat tool. The most important changes are detailed below:

New Script for .po File Handling:

• .scripts/intercept.py: Added a new script to handle .po files, which includes functionality to parse the file and retrieve specific entries based on their occurrences.

Makefile Enhancements:

• Makefile: Added a new target to install the aider-chat tool in the virtual environment.
• Makefile: Introduced a new translate target that uses the aider-chat tool to translate Python documentation into Traditional Chinese. This target requires FILE and LINE arguments to specify the .po file and the line number to translate.

Example

[ezio-melotti]

I would add a module docstring and a description to argparse.ArgumentParser(description=...) to clarify what this script does.

[ezio-melotti]

Add type=Path, and reformat to be more consistent:

Suggested change

	parser.add_argument(
	"path",
	help="the path of a PO file",
	)
	parser.add_argument("-n", '--occurrence_number', type=int, default=1)
	args = parser.parse_args()
	path = Path(args.path).resolve()
	parser.add_argument("path", type=Path,
	help="the path of a PO file")
	parser.add_argument("-n", '--occurrence_number',
	type=int, default=1)
	args = parser.parse_args()
	path = args.path.resolve()

I would also add a help= for -n.