Statusline indicator to show number of selected chars

Feature request: #4624

Author: wes adams

helix-term/src/ui/statusline.rs

@@ -247,9 +247,15 @@ where
     F: Fn(&mut RenderContext, String, Option<Style>) + Copy,
 {
     let count = context.doc.selection(context.view.id).len();
+    let tot_sel = context.doc.selections().
+        get(&context.view.id).
+        unwrap().
+        ranges()[0].
+        len();
     write(
         context,
-        format!(" {} sel{} ", count, if count == 1 { "" } else { "s" }),
+        format!(" {} sel{} {}",
+            count, if count == 1 { "" } else { "s" }, tot_sel),
         None,
     );
 }