feat(portfolio): new utility to get top projects for the ProjectsCard

[yhabib]

Motivation

The Portfolio page displays a list of projects that behaves differently based on specific rules.

The getTopProjects function encapsulates the following logic:

• It should return up to four projects.
• When the user is logged out, the function returns the top four projects, listing ICP first, followed by three sorted by name. This is similar to how we do it in the Staking page when the user is logged out.
• When the user is logged in, it returns the projects with the highest stakeInUsd. If ICP is present, it should be the first item in the list.

Changes

• Added a new descending comparator, compareProjectsByUsdBalance
• Exported compareIcpFirst and compareByProjectTitle from staking.utils to build the sorting comparator.
• Introduced a new utility, getTopProjects

Tests

• Created unit tests for getTopProjects

Todos

• Add an entry to the changelog (if necessary). Not necessary.
  Not necessary.

[mstrasinskis]

Thanks!

[mstrasinskis]

Where is this parameter going to be used?