Cleanup pkgdown

Fixing CRAN problem with donttest

Using patchwork

Updates for NLDI changes

- fix errors itroduced with nwisgw vs nwissw
- minimal code clean up

Getting leading zeros back

Getting ready for readr 2.0

Merge branch 'master' of github.com:USGS-R/dataRetrieval

# Conflicts:
#	R/importRDB1.r

Avoid operating on the readr problems attribute directly

In the upcoming readr 2.0.0 release the internals of the problems
attribute have changed. It is no longer a tibble of problems, instead it
is an external pointer to the index that is converted to a tibble by the
`problems()` function.

The public interface to retrieve the problems was always using the
`problems()` function, these code changes in this commit convert the
existing code to use only the public interface.

Get comments back as attribute