Ensure ansi mode windows (#2494)

* WIP - compiling but not working

* semi-working

* making progress

* working except for table lines

* fmt + clippy

* cleaned up some comments

* working line colors

* fmt, clippy, updated sample config.toml

* merges

* ensure ansi mode is enabled on windows
ansi mode sometimes gets out of sync in Windows.
I'm not sure why but this appears to fix it.

crates/nu-table/src/table.rs

@@ -750,6 +750,11 @@ impl WrappedTable {
     }
 
     fn new_print_table(&self, color_hm: &HashMap<String, Style>) {
+        #[cfg(windows)]
+        {
+            let _ = ansi_term::enable_ansi_support();
+        }
+
         if self.data.is_empty() {
             return;
         }