Update FPA position of visible cameras after power outage in 2024 March

After recovering from the scheduled power outage on 21 March 2024, when all cameras were warmed up, the focus position was measured for visible cameras. The new position is
 

• xcu_r1 motors moveCcd a=172.43 b=160.33 c=133.58 microns abs
• xcu_r2 motors moveCcd a=171.80 b=197.28 c=175.49 microns abs

• xcu_r3 motors moveCcd a=199.93 b=189.73 c=188.77 microns abs
• xcu_r4 motors moveCcd a=101.32 b=51.29 c=95.76 microns abs

• xcu_b1 motors moveCcd a=158.05 b=137.80 c=113.76 microns abs
• xcu_b2 motors moveCcd a=230.85 b=246.91 c=233.97 microns abs
• xcu_b3 motors moveCcd a=196.00 b=178.80 c=198.20 microns abs
• xcu_b4 motors moveCcd a=119.76 b=86.00 c=131.02 microns abs