Add user preference option for default project / namespace

Description

As a user, I want set a preference which project/namespace should be opened when the URL doesn't contain a namespace. It should contain an option "Last viewed" which defaults to the latest used project (matches the previous implementation).

Acceptance Criteria

1. New user preference option "Project" to select "Last viewed" or a project
2. When the user open a URL without a namespace the new preference should be used, for example when /, /add or /topology is opened.
3. URLs with a namespace should ignore the preferences, like /add/all-namespaces /topology/ns/christoph?view=list

Additional Details:

• Final design Google docs, but we should focus on feature completeness over adopting the exact design
• This should based on the work of CONSOLE-2383 / PR 9279