feat: codemode to enable-v12-structured-list-visible-icons

[2nikhiltom]

Closes #18351

codemode updates selectable StructuredList components with new v12 selection structuredList
Added messageConfig option to display post run message if migration provides

It does the following

• Replaces checkmark icons with radio buttons (by adding selection prop to all StructuredListRow)

• Identifies StructuredListWrapper components with the selection prop and adds selection prop to all children StructuredListRow

• Checks if the last StructuredListRow has checkmark icon and removes the cell

        Before migration:
      <StructuredListWrapper selection>
        <StructuredListRow>         --------------------------------------> selection prop will be added here
          <StructuredListCell>Content</StructuredListCell>
          <StructuredListCell><CheckmarkFilled /></StructuredListCell>--->cell with CheckmarkFilled will be removed 
        </StructuredListRow>
      </StructuredListWrapper>
  
    After migration:
      <StructuredListWrapper selection>
        <StructuredListRow selection>
          <StructuredListCell>Content</StructuredListCell>
        </StructuredListRow>
      </StructuredListWrapper>
  

Changelog

New

Added enable-v12-structured-list-visible-icons codemode
Updated test fixtures for the same

Testing / Reviewing

1. Run yarn install and yarn build at root
2. run the codemod via below command
3. npx @carbon/upgrade migrate enable-v12-structured-list-visible-icons --write
4. verify the a message is seen in console instructing users to turn on the flag in Saas
5. run react storybook in your local
   cd packages/react
   yarn storybook
   and verify the changes made after running the codemode makes the deafult structuredlist--selection look similar to its feature-flag version

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.

Project coverage is 84.26%. Comparing base (84fd364) to head (5b3aa0a).
Report is 16 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/upgrade/src/commands/migrate.js	0.00%	7 Missing and 1 partial ⚠️
packages/upgrade/src/upgrades.js	0.00%	5 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #18615      +/-   ##
==========================================
- Coverage   84.97%   84.26%   -0.72%     
==========================================
  Files         408      408              
  Lines       14543    14659     +116     
  Branches     4765     4795      +30     
==========================================
- Hits        12358    12352       -6     
- Misses       2023     2143     +120     
- Partials      162      164       +2     

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[riddhybansal]

After long discussion about this PR with @2nikhiltom I got my confusions cleared.