Improve Iconography

[PintoGideon]

This issue has been a pain point for a while. Due to the nature of fast prototyping and development, the code quality, especially regarding consistent use of icons, has been compromised. This issue aims to address the following:

• Utilize Patternfly icons consistently throughout the codebase.
• Remove the usage of @heroicons.
• Where Patternfly icons do not cover the use-case, integrate Font Awesome icons with Patternfly classnames for consistent styling
• Implement a single file to track down icons, making it easier to make changes or upgrades in the future.