Upgrade dockview to 7.0.2, mermaid to 11.16.0, vega-lite to 6.4.3

Resolves the JavaScript dependency updates in issue #41.

dockview 5.2.0 -> 7.0.2: v7 renamed the framework-agnostic core package
from "dockview-core" to "dockview", which changes the browser global from
window['dockview-core'] to window.dockview. All dockview APIs used by ICL
are unchanged. Vendored dockview.min.js and dockview.css replaced with the
7.0.2 npm dist.

mermaid 11.14.0 -> 11.16.0 and vega-lite 6.4.2 -> 6.4.3: vendored bundles
replaced with the corresponding npm dist files.

tracked-versions.lisp, WEB-LICENSES and OPEN-SOURCE-NOTICES.txt updated to
match; the stale Vega/Vega-Lite/Mermaid version strings in the license
files were synced to the actual vendored versions at the same time.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>