Form cleanup
- Cleaning up of form elements to have consistent and more clear names
- Taken out of merge !124 (merged), including bug fix to unrequire ventilation fields when switching between types (closes issue #139 (closed))
- Minor update to form UI which:
- Only clears invalid inputs when changing ventilation option (closes issue #125 (closed))
- Avoids red borders when showing ventilation text inputs (closes issue #45 (closed))
- Updated calculator version to 1.4.0