fix: migrate from JUGGLER_DETECTOR to simply DETECTOR

README.md

benchmarks/backgrounds/analysis/synchrotron_sim.cxx

benchmarks/backgrounds/synchrotron.sh

benchmarks/dis/analysis-only.sh

benchmarks/dis/dis.sh

benchmarks/dvcs/dvcs.sh

benchmarks/dvmp/dvmp.sh

benchmarks/single/simulate.sh

benchmarks/tcs/tcs.sh

benchmarks/u_omega/u_omega.sh

options/reconstruction.ecal.py

options/reconstruction.hcal.py

options/reconstruction.py

options/reconstruction.raw.py