refactor: update global styles using emotion

src/App/App.tsx

@@ -10,8 +10,8 @@ import Header from '../components/Header';
 import { Container, Content } from '../components/Layout';
 import RouterApp from '../router';
 import API from '../utils/api';
-import '../styles/typeface-roboto.scss';
-import '../styles/main.scss';
+import '../styles/typeface-roboto.css';
+import '../utils/styles/global';
 import 'normalize.css';
 import Footer from '../components/Footer';
 import { FormError } from 'src/components/Login/Login';
@@ -67,13 +67,7 @@ export default class App extends Component<{}, AppStateInterface> {
     return (
       // @ts-ignore
       <Container isLoading={isLoading}>
-        {isLoading ? (
-          <Loading />
-        ) : (
-          <>
-            <AppContextProvider value={context}>{this.renderContent()}</AppContextProvider>
-          </>
-        )}
+        {isLoading ? <Loading /> : <AppContextProvider value={context}>{this.renderContent()}</AppContextProvider>}
         {this.renderLoginModal()}
       </Container>
     );

src/App/app.scss

@@ -1,16 +0,0 @@
-@import './styles/variables';
-
-.alertError {
-    background-color: $red !important;
-    min-width: inherit !important;
-}
-
-.alertErrorMsg {
-    display: flex;
-    align-items: center;
-}
-
-.alertIcon {
-    opacity: 0.9;
-    margin-right: 8px;
-}

src/App/styles.ts

@@ -0,0 +1,17 @@
+import { css } from 'emotion';
+import colors from '../utils/styles/colors';
+
+export const alertError = css`
+  background-color: ${colors.red} !important;
+  min-width: inherit !important;
+`;
+
+export const alertErrorMsg = css`
+  display: flex;
+  align-items: center;
+`;
+
+export const alertIcon = css({
+  opacity: 0.9,
+  marginRight: '8px',
+});