completed the rest of the explanation improvements from JARVIS audit

Fix storage quota error by using memory storage and add type safety checks

Clean up: fix significant layer threshold to 50%, remove unused logit lens parameter, remove certainty calculations

Add ablation experiment before/after comparison with Reset button

Feature updates: collapsible sidebar, toggle compare button, check token submit button, fix second graph visibility, improve check token debug output

Add collapsible sidebar with default collapsed state

Using final layer output instead of mlp for simpler computation

Full visualization reorganization, handles model selection, parameter selection, visualizes graphs w/ bertviz onclick