Add licence and changelog screen

src/screens/About/AboutScreen.js

@@ -101,18 +101,19 @@ class AboutScreen extends React.Component<PropsType> {
         const {navigation} = this.props;
         navigation.navigate('changelog');
       },
-      icon: 'refresh',
+      icon: 'file-document',
       text: i18n.t('screens.about.changelog'),
       showChevron: true,
     },
     {
       onPressCallback: () => {
-        openWebLink(links.license);
+        const {navigation} = this.props;
+        navigation.navigate('licence');
       },
       icon: 'file-document',
       text: i18n.t('screens.about.license'),
       showChevron: true,
-    },
+    }
   ];
 
   /**