UX add a new address
A lot of people saying to me that they don't understand how frame work because of it. Erase the step consisting to clic to the address to add it in the main page
Support connection with dapps via walletconnect instead of a browser extension. Browser extension can expose risk with auto updates and people if people download a fake extension it can lead to funds lost.
UI design note - account expansion
I'd like to suggest mirroring the chevrons. Point down when collapsed, point up when expanded. As in Material design components: https://material.io/archive/guidelines/components/expansion-panels.html This gives feed forward that when you click the list item expands/collapses