EDSC-2909: Create EDSCIcon component and implement react-icons

[mreese84]

Description

Currently we use a font-awesome package from npm which imports Font Awesome as a font. To improve performance, we should replace this with an svg library like react-icons. We should create an Icon component which will dynamically import react-icons, allowing us to add/remove libraries as needed. The component should accept className, library, and icon as props. Initially, only the Font Awesome library will be used.

Acceptance Criteria

• All instances of <i> icon elements replaced with EDSCIcon component
• No visual changes to current icons

[suhay]

Hey! Would like to grab this one.

[abbottry]

Awesome, we're here if you have any questions!