Update atomic.omp.json

[kevinShogun]

Prerequisites

• I have read and understood the contributing guide.
• The commit message follows the conventional commits guidelines.
• Tests for the changes have been added (for bug fixes / features).
• Docs have been added/updated (for bug fixes / features).

Description

This pull request aims to enhance the visual appearance of the Atomic theme for Oh My Posh. The previous version had some minor visual issues with character rendering, which have now been addressed.

Key improvements include:

• Character Rendering Fixes: Resolved issues with misaligned or visually broken characters.
• Enhanced Visual Consistency: Polished the overall look to deliver a seamless and professional appearance in your terminal.