Port Authority officials followed last week’s press conference about replacing the disliked Port Authority Bus Terminal on Eighth Avenue in Manhattan with action, authorizing spending $210 million on Thursday for more engineering and planning work on a trio of buildings. The $210 million authorization, unanimously approved by the board of commissioners on Thursday, represents the largest single commitment of cash to the project, which could start construction in late 2024 or early 2025. The $210 million would support design and advanced engineering of the new terminal’s three major components:…