Grievous Angel, the latest restaurant concept from the owners of LoveBird Almost Famous Chicken, is now serving “deceptively good burgers” in downtown Lakeland. We stopped by opening week — and so did everyone else. Lines have been out the door every night, but we can see why. The vibe in five words: family-friendly honky-tonk bar. Country rock music blares while black-and-white western movies play behind the bar. After ordering at the counter, we were greeted by “Bad, Bad Leroy Brown” playing on the patio while we found a spot in the shade…