changes made to the run workflow

[himanshudube97]

• Removed the two buttons from ui, and have a single drop dropdown as in the figma file linked in the issue.
• Added a select action as default placeholder, so that user can choose an option from the dropdown.

https://jam.dev/c/892417d8-7e5e-4282-be70-6bfaadac7f60

[codecov]

Codecov Report

Attention: Patch coverage is 72.72727% with 3 lines in your changes missing coverage. Please review.

Project coverage is 70.83%. Comparing base (73d9ea9) to head (89fe636).

Files with missing lines	Patch %	Lines
...TransformWorkflow/FlowEditor/Components/Canvas.tsx	72.72%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1197      +/-   ##
==========================================
- Coverage   70.83%   70.83%   -0.01%     
==========================================
  Files          90       90              
  Lines        6638     6637       -1     
  Branches     1587     1611      +24     
==========================================
- Hits         4702     4701       -1     
  Misses       1899     1899              
  Partials       37       37              

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