fix: interface blinks on reload with dark theme

[Raubzeug]

CI Results

Test Status: ⚠️ FLAKY

📊 Full Report

Total	Passed	Failed	Flaky	Skipped
344	338	0	1	5

Test Changes Summary ⏭️3 🗑️2

⏭️ Skipped Tests (3)

1. Query tab first row has values for all columns in Top mode (tenant/diagnostics/tabs/queries.test.ts)
2. Scroll to row, get shareable link, navigate to URL and verify row is scrolled into view (tenant/diagnostics/tabs/queries.test.ts)
3. TopShards tab first row has values for all columns in History mode (tenant/diagnostics/tabs/topShards.test.ts)

🗑️ Deleted Tests (2)

1. shows access denied when operations request returns 403 (tenant/diagnostics/tabs/operations.test.ts)
2. loads all operations when scrolling to the bottom multiple times (tenant/diagnostics/tabs/operations.test.ts)

Bundle Size: ✅

Current: 84.00 MB | Main: 84.00 MB
Diff: +0.25 KB (0.00%)

✅ Bundle size unchanged.

ℹ️ CI Information

• Test recordings for failed tests are available in the full report.
• Bundle size is measured for the entire 'dist' directory.
• 📊 indicates links to detailed reports.
• 🔺 indicates increase, 🔽 decrease, and ✅ no change in bundle size.

[astandrik]

Could you provide description please of how (and where) it works now, where it wasn't working and what is #2d2c33 ?
Such changes in global index.html looks a bit suspicious to me

[Raubzeug]

Could you provide description please of how (and where) it works now, where it wasn't working and what is #2d2c33 ? Such changes in global index.html looks a bit suspicious to me

#2d2c33 - background color in dark theme.
For now if you reload interface in dark theme, white color will blink (if throttle network). This PR fixes it.