Tracking: Blank Page whitescreen issue

Created by: jasongornall

Plan

Summary tracking ticket for remaining work with white-screens during deployment

Tracked issues

@unassigned

• https://github.com/sourcegraph/sourcegraph/issues/35636
• https://github.com/sourcegraph/sourcegraph/issues/35634
• https://github.com/sourcegraph/sourcegraph/issues/35637

Legend

• 👩 Customer issue
• 🐛 Bug
• 🧶 Technical debt
• 🎩 Quality of life
• 🛠️ Roadmap
• 🕵️ Spike
• 🔒 Security issue
• 🙆 Stretch goal