* DOC: pydata sphinx theme
* DOC: missing files from TOC
* DOC: CSS from Pandas for buttons
* DOC: build doc instructions
* DOC: fix _result_classes and some other warnings
* DOC: css in config instead of template
* DOC: revert templates to fix stub and target not found warnings
* CI/DOC: bump no_output_timeout to 20m
* CI: remove duplicate install
* DOC: css trick for the sidebar
* DOC: update toolchain and dev guides
* DOC: revert release move
Scott Shambaugh
Pamphile ROY