* master: (43 commits)
build: move dev dependencies from dependencies array and remove unused dependencies
build: fix offical node version to 16.15.0
chore: delete unused directory `browser/build`
docs: remove holiday text from README
build: update downshift patch to match installed version
style: revert to using var to minimise diff
style: replace var with const
fix: enforce proper length constraints on timestamp counter and node id
test: fix test to properly pass in invalid inputs individually
ci: re-add runner os specific caches
ci: turn boilerplate into composite action
ci: only build electron app on master
docs: add comment explaining how to reactivate code signing
build: remove signing config
ci: avoid attempting to get CSC_KEY_PASSWORD interactively in github actions
ci: always use bash as the shell
ci: cache node_modules per runner os
ci: avoid duplicate linting in CI
ci: add electron build to CI
ci: build api and web packages in CI
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