webview beta release

[bmaranville]

Tracking all the issues that should be resolved before making a beta-release of refl1d-webview

• Provide method for downloading parameter uncertainties in text form in webview #168
• add "download SVG" button to webview plots #169
• Installation: binary Windows build
• Installation: binary Macos package (with instructions)
• Installation: one-line: requirements.txt for pip or environment.yml for conda/mamba
• Documentation: example notebook files for running inside Jupyter (lab and hub)
• Finer-grained control of session storage (read from file, write to file, set automatic write file as separate actions?)
• Add download button for saving contours in the profile uncertainty tab as columnar data #176
• Add download for correlation plots in columnar/table form
• Add download for parameter uncertainty data
• Writing out python scripts (with annotations)
• Load multiple datasets from single ORSO file #171
• Add additional scale options to reflectivity plots (especially log-x)
• Show dQ error bars on reflectivity plots