Add display:flex for start/end in text-field

[ben-girardet]

Pull Request

📖 Description

I've noticed that the start / end icons in text-field were not centered. Based on the current styles of button I've added a display:flex for those slots so that they are correctly centered.

🎫 Issues

👩‍💻 Reviewer Notes

📑 Test Plan

✅ Checklist

General

• I have included a change request file using $ yarn change
• I have added tests for my changes.
• I have tested my changes.
• I have updated the project documentation to reflect my changes.
• I have read the CONTRIBUTING documentation and followed the standards for this project.

Component-specific

• I have added a new component
• I have modified an existing component
• I have updated the definition file
• I have updated the configuration file

⏭ Next Steps