Fix table icons layout and add Qwen/MiniMax logos

UI cleanup and About page updates

Multiple graph and table improvements

Replace open/closed model distinction with lock emojis in tables

Remove open/closed distinction from graph, use company logos as data points

Add company logos to graphs and tables, label frontier points with model names

Replace total_cost with cost_per_instance (average cost per instance)

fix: Column naming and incomplete entries toggle

feat: Update leaderboard calculations and add incomplete entries toggle

Fix UI score formatting: do not coerce NaN to 0; rely on format_score_column to show 'Not Submitted'.\n\nCo-authored-by: openhands <openhands@all-hands.dev>

Fix data plotting requirements and server port handling; ensure per-benchmark plots use correct agent column.\n\n- Respect HOST/PORT env for local runs\n- Use 'OpenHands Version' in plot requirements\n- Avoid plotting when use_plotly=False\n\nCo-authored-by: openhands <openhands@all-hands.dev>

Remove unused AstaBench category files and update UI to OpenHands categories

Fix score calculation to match AstaBench methodology and update categories

Swap column order and fix duplicate column warnings

Rename columns: Agent→OpenHands Version, Models Used→Language Model, remove Submitter

Force rebuild: Update comment

Fix missing get_combined_icon_html reference in main page

Simplify leaderboard to open vs closed models only

Fix runtime errors and data loading

Convert to JSONL data format and remove agent-eval dependency

Initial OpenHands Index leaderboard based on ASTA Bench