Fix the issue about `@Environment` var being accessed from outside a View

[pinarol]

Closes #

Description

Fixes the issue:

Accessing Environment's value outside of being installed on a View. This will always read the default value and will not update.

So we shouldn't use @Environment var inside a non-View struct. We need to find a way to listen to color scheme changes and then re-render AvatarPickerProfileView so it updates its colors. I am not sure if this is the best solution so let's discuss other ideas if you have any.

Testing Steps

Check AvatarPickerProfileView previews "Empty", "Empty & Loading" in both light & dark appearance. Observe: Colors are adapting.

Run the SwiftUI demo app and open the avatar picker. Observe: The above warning has disappeared. ☝️

[pinarol]

Yeah I have the same feeling. 👍