fix: use globalVariables for state.abb/state.name, regenerate docs

@importFrom does not work for base R lazy data objects — replaced with
utils::globalVariables() in the package file to suppress the R CMD check
NOTE. Removed the invalid @importFrom datasets tag from utils.R.

Also commits all man/ and NAMESPACE changes from devtools::document().

R/civilytics-package.R

@@ -7,4 +7,8 @@
 ## usethis namespace: end
 NULL
 
+# state.abb and state.name are lazy data from the datasets package (base R).
+# They cannot be imported via @importFrom — suppress the R CMD check NOTE here.
+utils::globalVariables(c("state.abb", "state.name"))
+