- Adding new repositories now differentiates between "Online" & "Local"
where adding a local repository doesn't prompt for a URL.
- Support removing repositories and their files (uses confirmation
defaulting to "Cancel" to avoid accidents).
- Show an error icon next to repositories that have invalid settings,
these repositories are now ignored until the settings are corrected,
required fields are highlighted red when they're unset & required.
- Rename "directory" to "custom_directory" since an automatic path is
used when not set - created in the users scripts directory.
- Use toggles for custom-directory & remote URL instead of relying on
the value to be left an empty string for alternative behavior.