fix(script.py): add prompt parameter to generate_script function
feat(main.py): add loop to run main function indefinitely and add option to quit with ctrl+c
fix(main.py): print video object instead of video url
feat(uploader.py): add retry mechanism to handle token expiration and refresh token if necessary. Also, pass youtube object to upload_thumbnail function.
feat(generators/montage.py): add check to skip slide if it already exists
feat(generators/montage.py): add support for DEEPL_ACCESS_KEY and UNSPLASH_ACCESS_KEY environment variables
feat(generators/speak.py): add support for Johanne voice
feat(generators/speak.py): add emotion parameter to generate_voice function
feat(generators/uploader.py): add success message and authorization prompt message to run_local_server method
fix(main.py): check if credits is None before writing to meta.txt file
feat(prompts/marp.md): change theme to gaia and add lead and invert classes
refactor(montage.py): remove unused srt_fr variable
refactor(montage.py): remove saving of french subtitle file
refactor(main.py): remove unused translate import and function call
