By Elizabeth Lenart | Contributor Chabad of Plano/Collin County invites the community to celebrate its 30th Anniversary at its Annual Gala, “Going Forward with Strength,” Sunday, March 27, 5:30 p.m. dinner and 7:30 p.m. program, at the Eisemann Center in Richardson.  Rabbi Menachem and Rivkie Block will be honored for their three decades of…