Add an option to select different branch in the pipeline editor simulation

Summary

Add an option in the pipeline editor simulation that allows users to select and switch between different branches, enhancing flexibility.

Definition of Done

• Users can select different branches from the dropdown in the Pipeline Editor > Validate tab.
  • By default, the main branch is selected.
  • No more on-hover tooltip needed.
    • 
• Users can easily differentiate between the protected branch and others.

Details

Design spec

• Figma dev 🔗
• Design tab 1 👉 Option with search in the dropdown
• Design tab 2 👉 Option without search in the dropdown

Roles involved

• Design
• Technical Writing
• Backend
• Frontend
• Test engineering

NOTE: When work is ready to be defined, please create appropriate sub-tasks.