Create simplified chinese localization file

[colinmurphy01]

Translation file: https://docs.google.com/spreadsheets/d/1WgQ0XWfRZrzK5OWMSVuBatElAZGnlxcW/edit?gid=761424432#gid=761424432

Considerations

• Start with static phrases
• No UI to toggle between languages, navigate via /es/ url
• Evaluate font

Do together with #1579

[colinmurphy01]

Flagged for Seamus