This PR updates the icon positioning in tabs to make give them even
spacing on either side.

Without file icons:

<img width="901" alt="Screenshot 2024-07-19 at 7 55 39 AM"
src="https://github.com/user-attachments/assets/89cc80cd-1323-424e-90a5-79d8586e8725">

With file icons:

<img width="956" alt="Screenshot 2024-07-19 at 7 55 52 AM"
src="https://github.com/user-attachments/assets/c5b47b4e-e6c3-4dbd-aeb3-fb09a0032105">

Release Notes:

- N/A