Use clapper (instead of clapp)

conda/meta.yaml

doc/catalog.json

doc/conf.py

doc/usage/index.rst

environment.yaml

pyproject.toml

src/ptbench/scripts/aggregpred.py

src/ptbench/scripts/cli.py

src/ptbench/scripts/compare.py

src/ptbench/scripts/config.py

src/ptbench/scripts/dataset.py

src/ptbench/scripts/evaluate.py

src/ptbench/scripts/predict.py

src/ptbench/scripts/predtojson.py

src/ptbench/scripts/train.py

src/ptbench/scripts/train_analysis.py

src/ptbench/utils/rc.py