feat(Authoring): Allow adding branch from add step button

[geoffreykwan]

Changes

• Added a create branch view
• Added an edit branch view

Test

• Make sure you can create a branch
• Make sure you can edit a branch

Closes #1745

[hirokiterashima]

:tada: This issue has been resolved in version 5.157.0 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: