Fix for #11796 Magento2.2.0 home page product grid issues

[punitv]

Description

Fixed homepage product grid issues.

• Display 5 products in a row and with no margin addition for the first product on next row (Desktop view).
• Display 2 products in a row (Mobile portrait mode).
• Display 3 products in a row (Mobile landscape mode).

Fixed Issues (if relevant)

1. Magento2.2.0 home page product grid issues #11796: Magento2.2.0 home page product grid issues

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-cicd2]

All committers have signed the CLA.

[punitv]

I tried many times signing Contributor License Agreement but still shows not signed yet.

[dmanners]

@punitv I think your user that committed is different from the user that you are signed into github with. Please either update the committed user or change the github user.

[punitv]

@dmanners Yes, I fork repository with one user-email and committed code using different user-email. Will this be the way to update the committed user.

[dmanners]

@punitv you will need to change all your commits. I think https://stackoverflow.com/a/3042512 should cover your needs here.