use PersistentVolumeClaim to create a persistent volume for each local service (mongo, minio, redis) when running in a cloud setup
if cloud-specified volume storage class not specified, create default hostPath volume (eg. for minikube)
lint: add default icon for chart
- support listing existing crawls
- add 'schedule' and 'manual' annotations to jobs, store in Crawl obj
- ensure manual jobs are deleted when completed
- support deleting crawls by id (but not data)
- rename running crawl delete to '/cancel'
change paths for local minio/mongo to /tmp
move mongo into separate optional deployment along with minio
support for configuring storages
support for deleting crawls, associated config and secrets
