Add flexbox to project header

## What does this MR do?
Adds flexbox to project header to keep components vertically centered regardless of description presence/length

## What are the relevant issue numbers?
Closes  #18080 

## Screenshots (if relevant)
![Screen_Shot_2016-06-01_at_12.02.42_PM](/uploads/edd769110b52ec34046f4079619e45eb/Screen_Shot_2016-06-01_at_12.02.42_PM.png)     
![Screen_Shot_2016-06-01_at_12.02.35_PM](/uploads/c5c2828ba5688a2588d3721a2d21d5fe/Screen_Shot_2016-06-01_at_12.02.35_PM.png)

See merge request !4417