Update accountSelector component

[samajammin]

Summary

A couple items to simplify & improve the UX of this component

• [ ] Clicking outside of dropdown/menu should exit this component
• [x] Remove the "configure account" screen

Motivation

• Clicking outside of a menu to exit is a standard UX pattern
• The "configure account" screen is no longer necessary since there's only one network. For editing that name, we can have the pencil icon trigger the ability to directly edit the account name

Describe alternatives you've considered

Instead of removing the "configure account" screen, we could just remove the "Configure the account for each network" section but I think it'd be a nice simplification to remove this modal entirely.

Additional context

[samajammin]

@lovrobiljeskovic nice work removing the "configure account" screen but clicking outside of the menu still doesn't close it - any way we can fix that?

[samajammin]

Confirming this is still an issue.

[Spejbl]

Hey @samajammin this was because of the issue mentioned by Lovro, that it wasn't closing only when clicking on the iframe - the browser preview, as it doesn't have the same listeners as the main application. Only way I could think of solving this, was to wrap a fixed component around it. So it's more like a modal now. Would you mind to check out the PR for that? #247 Thanks