Migrate angle icons on collapsible project

What does this MR do and why?

Update deprecated icon style on collapsible project component.

Related to #362789 (closed)

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Make sure that should_check_namespace_plan? returns true
2. Open Quotas page for a group http://localhost:3000/groups/<GROUP_NAME>/-/usage_quotas#storage-quota-tab and check the Projects table

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.