Missing space after deleting bootcamp partition
I believe the commands below will return the free space to your "Macintosh HD" volume.

diskutil  resizevolume  disk0s3  650M
diskutil  unmount  disk0s3
diskutil  cs  resizestack  7FA484C3-705F-4C19-B060-659CEB006623  0


To be sure of the 650M value, I would first need to see the output from the command given below.

diskutil  resizevolume  disk0s3  limits