Detects and renames non-standard column names that Eurostat's bulk
download sometimes returns, such as "geo\TIME_PERIOD" instead
of a proper "geo" column, or "TIME_PERIOD" instead of
"time". Call this immediately after eurostat::get_eurostat()
to ensure downstream code can rely on standard column names.
Examples
if (FALSE) { # \dontrun{
df <- eurostat::get_eurostat("hlth_rs_bdsrg2") %>% normalize_eurostat_cols()
} # }