DOC: Update ecosystem.rst: Add IDE, IPython, API

DOC: Update ecosystem.rst: Add GUI > Spyder
DOC: Update ecosystem.rst: GUI -> IDE, IPython > qgrid, API
DOC: Update ecosystem.rst: -> IDEs
DOC: Update ecosystem.rst: depluralize
Add xray to ecosystem docs

Fixes #8516
DOC: Add IPython [Notebook] description; alphabetize