Merge branch 'implement-ui' into purge-button

packages/concordia-app/src/components/UsernameSelector.jsx

@@ -38,7 +38,7 @@ const UsernameSelector = (props) => {
         });
       } else {
         onErrorChangeCallback({
-          usernameChecked: checkedUsername !== undefined,
+          usernameChecked: true,
           error: false,
           errorMessage: null,
         });

packages/concordia-app/src/views/Profile/GeneralTab/index.jsx

@@ -66,7 +66,7 @@ const GeneralTab = (props) => {
     }
   }, [dispatch, profileAddress, users]);
 
-  const authorAvatar = useMemo(() => (profileMetadataFetched && userAvatarUrl !== null
+  const authorAvatar = useMemo(() => (profileMetadataFetched && userAvatarUrl
     ? (
         <Image
           className="general-tab-profile-picture"