Bug/70334 project dropdown active project close button is misaligned

[dombesz]

Ticket

https://community.openproject.org/wp/70334

What are you trying to accomplish?

Align the project close button in the project dropdown.

Screenshots

Before

After

What approach did you choose and why?

Move the close button inside the span with the flex spacing.

Merge checklist

• [ ] Added/updated tests
• [ ] Added/updated documentation in Lookbook (patterns, previews, etc)
• [X] Tested major browsers (Chrome, Firefox, Edge, ...)