* 'master' of github.com:spotify/backstage: (60 commits)
packages,plugins: remove main:src and fix some main fields
packages/config: added get and getOptional
changed down caret to be up caret on user profile in the sidebar
packages/config: add getOptionalConfig and getOptionalConfigArray to mirror other accessors
packages/config-loader,core: update config usage to include context
build(deps): bump @types/react from 16.9.25 to 16.9.37 (#1342)
build(deps): bump rollup-plugin-esbuild from 2.0.0 to 2.1.0 (#1361)
build(deps-dev): bump lint-staged from 10.2.9 to 10.2.11 (#1359)
Polishing the Create page (#1353)
Add some air between sidebar sections (#1355)
Starred icon is yellow (#1351)
Updated FAQ with Gitlab link (#1352)
build(deps): bump react-helmet from 6.0.0 to 6.1.0 (#1327)
packages/config: added context to keep track of where config is from for error messages
packages/config: added .keys()
packages/config: keep track of key prefix to display better error messages
packages/config: optimize some error message handling
packages/config: allow config readers to be backed by undefined data
packages/config: flip around must* and get* to get* and getOptional*
packages/core-api: fix invocation order when continuing to app after sign-in
...
blam