Organize account related code in the client

[ccanos]

Description

As an Alkemio developer I want a consistent and clean codebase

Acceptance criteria

• [ ] Create account folder in the domain folder in the client, put the account related stuff here
• [ ] Use of account lookup instead of accessing account field where possible
• [ ] put accountId, in the user context metadata ...more tba

Additional Context

Screen shots / UX designs / data that are relevant.

Areas that will be affected

To be added during the refinement