Update URLs for various app configuration files to point to the
new big-bear-universal-apps repository. This ensures that the
latest configuration files are sourced from the correct location.
This commit adds a new script to generate a LibreDesk configuration file. The
script prompts the user for the desired location to save the config file, and
then downloads the default config from the BigBearTechWorld/big-bear-casaos
repository and saves it to the specified location. If the file already exists,
the user is asked for confirmation before overwriting it.