feat: add toggleable buffer word wrap

src/ruby.rs

@@ -937,12 +937,20 @@ end
   config.bind "Z", config.core.buffer_force_delete
   config.bind "R", config.core.diff
   config.bind "T", config.core.diff.close
+  config.bind "H", config.core.word_wrap.toggle
   raise "mutable diff actions" unless config.core.frozen? && config.core.diff.frozen? &&
     config.core.diff.close.frozen? && config.core.diff.name.frozen? &&
     config.core.diff.close.name.frozen?
 end"#,
         );
         let mut review = EditorSession::open(None, vec!["text".into()], Some(&config)).unwrap();
+        assert!(!review.editor().word_wrap());
+        review.handle(Input::Char('H'));
+        assert!(review.editor().word_wrap());
+        review.execute("word_wrap.toggle unexpected");
+        assert!(review.editor().word_wrap());
+        review.execute("word_wrap.toggle");
+        assert!(!review.editor().word_wrap());
         review.handle(Input::Char('R'));
         review.handle(Input::Escape);
         assert!(review.editor().diff().is_some());