[Bug] Tab switch flicker on Top Miners and Watchlist

[poppy0824]

Description

Switching tabs on Top Miners (/top-miners) and Watchlist (/watchlist) causes a visible flicker — both the main list and the right sidebar before re-populating, even when the data is already cached.

Steps to reproduce

• /top-miners — click OSS Contributions ↔ Discoveries
• /watchlist — click between Miners / Repositories / Bounties / Pull Requests / Issues

The list and sidebar flash on every tab change.

Expected

Tab switches feel instant

Video

screen-capture.webm