Web perf: Audit and improve Google Web Font performance

[machikoyasuda]

This ticket is part of a group of web performance tickets tracked here #2487.

Acceptance Criteria

• Double-check that we are using all 3 Roboto weights: 400 normal, 500 normal, 700 normal. Can we remove any weights?
• Use font-display: swap and preload. Follow this guide: https://web.dev/learn/performance/optimize-web-fonts
• Ensure there is a good fall-back default font. This might have changed after removing CA State Web Template.

Additional context