* feat(calendar): replace cron component with CronSet
* fix: same exported
* fix: type incorrect
* fix: locale
* feat: upgrade react-js-cron and update some text
* fix: cron path
* fix: edge case
* feat: support FixedBlock
* refactor(sequence-field): move to plugin and use table to record
* fix(database): skip test case which not in core
* fix(plugin-sequence): add migration
* fix(plugin-sequence): fix types
* test(plugin-sequence): fix test cases
* fix(plugin-sequence): fix configuration ui
* fix(plugin-sequence): fix merge
* fix(plugin-sequence): fix schema and error message