Project switch dropdown should be sorted by last activity

When I click project switch dropdown I would like to see projects sorted by last_activity_at DESC instead of id DESC

Title changed from When trigger project switch dropdown show group/user projects first to Project switch dropdown should be sorted by last activity

Milestone changed to 8.5

Added ~127618 label

mentioned in merge request !2692 (merged)

Status changed to closed by merge request !2692 (merged)

mentioned in commit 8d948744