Search within projects nav dropdown is slow

Overview

Search functionality of Projects dropdown is comparatively slower to yield results than global searchbox which is shown on main navigation.

Description

This could be due to Project dropdown using simple=false search API request made to /api/v4/projects.json. Reason for using that query param is to include avatar_url in API response, but along with avatar URL, response include other additional information as well which leads to slower query performance.

Proposal

Add avatar_url in response of /api/v4/projects.json even when simple=true is provided.