Elixirnote

([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.0.15...2badf555436063962451599a81b38b80f601a589))

Maintenance and upkeep improvements

- Fix Shutdown Error in Test App [10240](https://github.com/jupyterlab/jupyterlab/pull/10240) ([afshin](https://github.com/afshin))
- Update to `codemirror~=5.58.0` [10262](https://github.com/jupyterlab/jupyterlab/pull/10262) ([jtpio](https://github.com/jtpio))

([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.0.14...e1cda8e2fb69a6a01ec261ce13413acd306df4cb))

Enhancements made

- Added support for namespace packages in labextensions. [10150](https://github.com/jupyterlab/jupyterlab/pull/10150) [mellesies](https://github.com/mellesies)

Maintenance and upkeep improvements

- [3.0.x] Remove Dependency on Jupyter Packaging [10218](https://github.com/jupyterlab/jupyterlab/pull/10218) ([jtpio](https://github.com/jtpio))

Documentation improvements

- [3.0.x] Fix changelong entries for 3.0.13 [10087](https://github.com/jupyterlab/jupyterlab/pull/10087) ([blink1073](https://github.com/blink1073))
- chore: update extension_tutorial [10026](https://github.com/jupyterlab/jupyterlab/pull/10026) [0618](https://github.com/0618)

Other merged PRs

- Workaround Chromium issue with iframe reload/href [10185](https://github.com/jupyterlab/jupyterlab/pull/10185) [krassowski](https://github.com/krassowski)
- Update to `sanitize-html~=2.3.3` [10220](https://github.com/jupyterlab/jupyterlab/pull/10220) [jtpio](https://github.com/jtpio)
- Update to `url-parse~=1.5.1` [10219](https://github.com/jupyterlab/jupyterlab/pull/10219) [jtpio](https://github.com/jtpio)
- Update packaging commands in the extension tutorial [10104](https://github.com/jupyterlab/jupyterlab/pull/10104) [jtpio](https://github.com/jtpio)
- Mention mamba as a means to install JupyterLab [10093](https://github.com/jupyterlab/jupyterlab/pull/10093) [SylvainCorlay](https://github.com/SylvainCorlay)

- Clean up browser check [10080](https://github.com/jupyterlab/jupyterlab/pull/10080)
- Loosen pin on jupyter-packaging [9998](https://github.com/jupyterlab/jupyterlab/pull/9998)

- Add cell id per notebook format 4.5 ([10018](https://github.com/jupyterlab/jupyterlab/pull/10018))
- Fix label for "Create Console for Editor" ([9794](https://github.com/jupyterlab/jupyterlab/pull/9794))
- Use blobs to set the svg source of an image in the image viewer ([10029](https://github.com/jupyterlab/jupyterlab/pull/10029))
- \[Fix\] Copy shareable link command ([10021](https://github.com/jupyterlab/jupyterlab/pull/10021))
- Clarify where the overrides.json file should be in the docs ([9996](https://github.com/jupyterlab/jupyterlab/pull/9996))
- Do not make unnecessary npm registry requests ([9974](https://github.com/jupyterlab/jupyterlab/pull/9974))
- Fix escaping of urls and paths ([9978](https://github.com/jupyterlab/jupyterlab/pull/9978))

- Fix support for Safari by changing regular expression for Table of Contents ([9962](https://github.com/jupyterlab/jupyterlab/pull/9962))
- Fix DocRegistry FileType pattern matching ([9958](https://github.com/jupyterlab/jupyterlab/pull/9958))

- Fix: use process/browser module as real polyfill ([9636](https://github.com/jupyterlab/jupyterlab/pull/9636))
- Fix Table of Contents extension markdown bug for HTML comments ([9938](https://github.com/jupyterlab/jupyterlab/pull/9938))
- Make Table of Contents extension not rewrite all notebook headers ([9932](https://github.com/jupyterlab/jupyterlab/pull/9932))