improve some buttons, tree icons and spacings

2 jobs for 554-design-improve-the-position-of-the-icons in 0 seconds (queued for 104 minutes and 32 seconds)
latest
Status Job ID Name Coverage
  Test
failed #7356
deps

failed #7357
test

 
Name Stage Failure
failed
test Test There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job trace
failed
deps Test There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job trace