chore: add .gitattributes to treat Jupyter notebooks as documentation

fix: update release date for version 0.2.10 in release notes

fix: revert version number to 0.2.9 in __init__.py

Remove outdated datalab-kernel version 0.2.7 from nblink-lock.json

Bump version to 0.2.7

Enhance documentation to clarify Xeus-Python foundation, connection m…

…ethods, and cross-platform support for DataLab-Kernel

Enhance Plotter class with geometry and table result display capabili…

…ties; add support for multiple geometric shapes and rich HTML rendering for tables

Bump version to 0.2.4 in __init__.py

Bump version to 0.2.3 in __init__.py

Bump version to 0.2.2 in __init__.py