fix(client): address new warnings from linter

client/src/components/Flash/index.js

@@ -42,7 +42,7 @@ function Flash({ flashMessage, onClose }) {
           style={{
             height: flashMessageHeight + 'px'
           }}
-        ></div>
+        />
       )}
     </>
   );

client/src/components/Footer/index.js

@@ -294,7 +294,7 @@ function Footer() {
         </div>
         <div className='footer-buttom'>
           <div className='col-header'>Our Nonprofit</div>
-          <div className='footer-divder'></div>
+          <div className='footer-divder' />
           <div className='our-nonprofit'>
             <Link
               external={false}

client/src/components/layouts/Certification.js

@@ -29,7 +29,7 @@ class CertificationLayout extends Component {
 
     return (
       <Fragment>
-        <Helmet bodyAttributes={{ class: 'light-palette' }}></Helmet>
+        <Helmet bodyAttributes={{ class: 'light-palette' }} />
         {children}
       </Fragment>
     );