531 warning in example@pre release cleanup@main (#532)

closes #531 
We used to distinguish sub-items of the MAE object by term `datalabel`.
We don't do this anymore, this is artifact after the refactor.

Author: gogonzo

R/FilteredData.R

@@ -79,7 +79,7 @@
 #'   teal_slice(dataname = "mae", varname = "gender", selected = "female", keep_na = TRUE),
 #'   teal_slice(
 #'     dataname = "mae", varname = "ARRAY_TYPE",
-#'     selected = "", keep_na = TRUE, datalabel = "RPPAArray", arg = "subset"
+#'     selected = "", keep_na = TRUE, experiment = "RPPAArray", arg = "subset"
 #'   )
 #' )
 #' datasets$set_filter_state(state = fs)