v1.2.0-beta.3

Mostly optimizations for large repositories, and bug-fixing before the final release:

• Allow stale comment/timeline/review data on initial cycle #155
• Delay persistence until second cycle #153
• stale warning: Add link to Shift-Reload documentation #158
• Remove obsolete tag warning #157
• Fix filtered view count, remove obsolete embedded mode artifacts #156
• Golangci linting cleanup #150

Thank you to our contributors for this release:

• Ken Sipe
• Thomas Strömberg