Updated default error message

-Previous isn't grammatically correct.

Issue: DEB-160

src/definition/pagination.js

@@ -55,7 +55,7 @@ const pagination = {
       ref: 'errormessage',
       label: 'Default error message',
       type: 'string',
-      defaultValue: 'Ups! It seems you asked for too many data. Please filter more to see the whole picture.'
+      defaultValue: 'Unable to display all the data. Apply more filters to limit the amount of displayed data.'
     }
   }
 };

src/headers-table/measurement-column-header.jsx

@@ -50,7 +50,7 @@ const MeasurementColumnHeader = ({ baseCSS, general, hasSecondDimension, measure
   };
   return (
     <th
-      className={`grid-cells2${general.cellSuffix}`}
+      className={`grid-cells2 ${general.cellSuffix}`}
       style={style}
     >
       <span