Update browser favicon to match current color theme
**Is your feature request related to a problem? Please describe.**
Currently, the browser favicon remains orange even when choosing another color theme.

**Describe the solution you'd like**
It should update to match the current selection like the icon in the webpage itself does.

**Describe alternatives you've considered**
N/A

**Additional context**
![image](https://user-images.githubusercontent.com/11238501/125799434-963ce1f6-d651-4c5c-b3e4-b6a263b94630.png)
