Design - updated naming

[CheetoMao]

The starter settings should have a better name. "settings-templates" is too vague when your searching through lots of downloaded files.

• update the 'settings-templates' folder to 'harmonium-starter-settings'
• add an underscore to the 'harmonium-settings.scss' file (for consistency)
• make sure the zip file is updated as well

[revelry-stalebot[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.