fix: fallback for detailed memory

[astandrik]

Closes #1682

CI Results

Test Status: ✅ PASSED

📊 Full Report

Total	Passed	Failed	Flaky	Skipped
208	208	0	0	0

Test Changes Summary ✨7

✨ New Tests (7)

1. Memory viewer is visible and has correct status (memoryViewer/memoryViewer.test.ts)
2. Memory viewer shows correct base metrics (memoryViewer/memoryViewer.test.ts)
3. Memory viewer popup shows on hover with all metrics (memoryViewer/memoryViewer.test.ts)
4. Shows error for limit rows > 100000 (tenant/queryEditor/querySettings.test.ts)
5. Shows error for negative limit rows (tenant/queryEditor/querySettings.test.ts)
6. Persists valid limit rows value (tenant/queryEditor/querySettings.test.ts)
7. Allows empty limit rows value (tenant/queryEditor/querySettings.test.ts)

Bundle Size: ✅

Current: 66.09 MB | Main: 66.09 MB
Diff: +0.62 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.