feat: add layout transition

inertia/components/layouts/_transition_layout.tsx

@@ -0,0 +1,8 @@
+import styled from '@emotion/styled';
+import { fadeInScale } from '~/styles/keyframes';
+
+const TransitionLayout = styled.div(({ theme }) => ({
+  animation: `${theme.transition.delay} ${fadeInScale} both`,
+}));
+
+export default TransitionLayout;