Version 0.12.7

The 0.12.7 release primarily fixes an incompatibility with the new jinja2 3.1.0 release. Many thanks to @maartenbreddels, @govinda18, @raybellwaves and the maintainers @maximlt and @philippjfr for contributing further fixes to this release.

Bug fixes:

• Wrong offset when memoryview format is non-byte (#3206)
• Support jupyter server root_dir with lab extension (#3172)

Docs:

• add note on enabling panel widget on Jupyter Lab (#3029)
• Remove redundant and confusing JupyterLab install instructions (#3037)

Compatibility:

• Fix jinja2 imports (#3258)