Release 1.1.0

[bollwyvl]

• [x] start a release issue with a checklist (maybe like this one)
• [x] ensure the versions have been bumped (check with doit test:integrity)
• [x] validate on binder
• [x] wait for a successful build of master
  • https://github.com/deathbeds/ipydrawio/runs/2666213847
• [x] download the dist archive and unpack somewhere (maybe a fresh dist)
• [x] create a new release through the GitHub UI
  • [x] paste in the relevant CHANGELOG entries
  • [x] upload the artifacts
• [x] actually upload to npm.com, pypi.org

  cd dist
  twine upload ipydrawio*
  npm login
  npm publish deathbeds-ipydrawio-$VERSION.tgz
  npm publish deathbeds-ipydrawio-notebook-$VERSION.tgz
  npm publish deathbeds-ipydrawio-pdf-$VERSION.tgz
  npm publish deathbeds-ipydrawio-webpack-$OTHER_VERSION.tgz
  npm logout

• [x] postmortem #45
  • [x] handle conda-forge feedstock tasks
  • https://github.com/conda-forge/ipydrawio-feedstock/pull/1
  • [x] validate on binder via simplest-possible gists
  • https://mybinder.org/v2/gist/bollwyvl/3fd51fcdb392bdf39b0c7ee54a7f5151/HEAD?urlpath=lab
  • [x] bump to next development version