* fix: give service bind_options propagation rprivate as default
* test: add second bind mount for full-service spec to test this case as well
* docs: add a second mount to service example
* fix(service): allow other options for mount binds although they might not be the specified type
* test: for empty and null mount bind
* docs(service): explains propagation more in details
* docs(service): adds missing default for propagation
* fix(test): update stop grace period to 30s for flaky test on gh actions
Co-authored-by: Shunsuke Suzuki <suzuki-shunsuke@users.noreply.github.com>
