Allow user to remove key-pairs and derived accounts while inside wallet settings

[seanstrom]

Feature Issue

User Story

As a user,
I want remove a key-pair while inside the wallet settings.

Description

Implement the remove key-pair feature for the wallet settings.

Designs

Figma flow: the Figma designs

Notes

• Based on the design notes here, the user should not be allowed to remove the default key-pair.

Acceptance Criteria

Screen	Description	Acceptance Criteria
	Users can choose to remove a key-pair with actions menu	A user should be able to open the confirmation UI for removing a key-pair.
	Users can confirm the removal of a key-pair	A user should be able to swipe to confirm the removal of a key-pair. And the user should be required to authorize this action.
	A toast will appear to confirm that a key-pair has been removed	The user should see a toast that confirms a key-pair has been removed
	Users can see the updated list of key-pairs and accounts	The user should see the confirmation toast disappear and the updated list of key-pairs without the removed key-pair.