[icon] Switch icon from Font Awesome to Google Material icon - low priority

[baipai]

Is your feature request related to a problem? Please describe.

Considering future use and budget constraints, we have decided to change the icon from Font Awesome to Google Material Icon. However, this change is not of high priority; it's simply a note and documentation to indicate that we are planning to make the switch.

Describe alternatives you've considered

Since we're in the process of improving the user experience, flow, and design, it's likely that the UI components might change too. We might want to take a look at how the existing UI components work and plan our approach from there.

Additional context

The link about the Google Material Icon: https://fonts.google.com/icons & https://m3.material.io/styles/icons/applying-icons