Show only defined columns on inserted rows

When we were inserting a row or replacing an existing one (just like we
do when we click the link to select an investment), we were entering a
row containing all columns, and all of them were displayed even if they
had been excluded using the column selector.

This caused the table to move in a strange way, which sometimes made the
investment selection tests fail.

app/assets/javascripts/columns_selector.js

@@ -82,6 +82,9 @@
           App.ColumnsSelector.toggleColumn(event);
         }
       });
+      $(".column-selecteable").on("inserted", function() {
+        App.ColumnsSelector.initColumns();
+      });
     }
   };
 }).call(this);