Add a panel accessor class for streamlit scripts to call #95

All 26 tests pass in 8s

6 files - 4 6 suites - 4 8s ⏱️ -1s
26 tests ± 0 26 ✅ ± 0 0 💤 ±0 0 ❌ ±0
138 runs - 92 138 ✅ - 92 0 💤 ±0 0 ❌ ±0

Results for commit 470cc61. ± Comparison against earlier commit fb93400.