increase me11 sensitive region dimes by ~1/2 strip width at each edge

Slightly increase the dimensions in local x and y for the CSC ME1/1 chamber layers, because we have found they are a little too small at present: hit strip distributions are currently slightly narrower in simulated data than in real data. Increase by about ½ a strip width at each edge, so this is a small correction (about 2% increase in linear dimensions.)