add Landing page (#7)

src/containers/LandingThemeProvider/LandingThemeProvider.tsx

@@ -0,0 +1,13 @@
+import React, { FC, PropsWithChildren } from 'react';
+import { ChakraProvider } from '@chakra-ui/react';
+import { default as landingTheme } from './theme-config';
+import Fonts from './Fonts';
+
+export const LandingThemeProvider: FC<PropsWithChildren> = ({ children }) => {
+  return (
+    <ChakraProvider theme={landingTheme}>
+      <Fonts />
+      {children}
+    </ChakraProvider>
+  );
+};