feat(ui): Add action control flow, workflow static inputs and workflow return value expression

[daryllimyt]

Features

• Add control flow editor
  • Run if
  • Loop
• Add workflow return value expression editor. We need this for child workflows to return values to the parents
• Add workflow static inputs editor
• Add tooltips and usage examples for each
• Create custom editor component with upgraded editor styles
• Update api to handle the able use cases

Changes

• Changed action node copy jsonpath to copy action reference which will copy ACTIONS.<node slug>

Testing

• Manual QA with child workflows. Also tested running child workflows with schedules.
• Found some edge cases when parsing the workflow return value fails, which triggers infinite retry. Urgently needs to be fixed

Screens

[topher-lo]

LGTM