fixing typo.

resources/frontend_client/app/components/LogoIcon.react.js

@@ -21,7 +21,7 @@ export default class LogoIcon extends React.Component {
     }
 }
 
-LogoIcon.PropTypes = {
+LogoIcon.propTypes = {
 	width: PropTypes.number,
     height: PropTypes.number
 }
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