(v3.0.1.9079) docs: rename remaining 'antibiotic selectors'/'AB selectors' to 'antimicrobial selectors'/'AMR selectors'

* docs: rename remaining 'antibiotic selectors'/'AB selectors' to 'antimicrobial selectors'/'AMR selectors'

Five leftover occurrences of the old terminology updated in the AMR
vignette (section heading + code comment), the amr_selectors test file,
and two roxygen example comments in amr_selectors.R. The auto-generated
man/antimicrobial_selectors.Rd will update on the next devtools::document() run.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0169LucQ7SHDLHdTnDs1ENhd

* fix

---------

Co-authored-by: Claude <noreply@anthropic.com>

R/amr_selectors.R

@@ -202,7 +202,7 @@
 #' # data.table --------------------------------------------------------------
 #'
 #' # data.table is supported as well, just use it in the same way as with
-#' # base R, but add `with = FALSE` if using a single AB selector.
+#' # base R, but add `with = FALSE` if using a single AMR selector.
 #'
 #' if (require("data.table")) {
 #'   dt <- as.data.table(example_isolates)
@@ -215,7 +215,7 @@
 #'   dt[, carbapenems(), with = FALSE]
 #' }
 #'
-#' # for multiple selections or AB selectors, `with = FALSE` is not needed:
+#' # for multiple selections or AMR selectors, `with = FALSE` is not needed:
 #' if (require("data.table")) {
 #'   dt[, c("mo", aminoglycosides())]
 #' }