4.0.0.alpha6: .navbar-text should have the same vertical padding as .nav-link

Created by: john-999

Vertical padding (top and bottom):

• .navbar-text shows 0.425rem
• .nav-link shows 0.5rem

This means that 2 juxtaposed elements having these classes will not be vertically aligned.

Solution: Change .navbar-text to have 0.5rem of top- and bottom-padding.