refact: extract index.sass to styled-components

src/components/Layout/index.tsx

@@ -12,7 +12,6 @@ import { Container } from "../Container"
 import { Footer } from "../Footer"
 import { Header } from "../Header"
 import { GlobalStyles } from "../../globalStyles"
-import "./layout.scss"
 import * as SC from "./styles"
 import Scrollbar from "react-perfect-scrollbar"
 import "react-perfect-scrollbar/dist/css/styles.css"

src/components/Layout/layout.scss

@@ -1,91 +0,0 @@
-// @import "~prismjs/themes/prism-tomorrow.css";
-
-html {
-  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial,
-    sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol;
-  -ms-text-size-adjust: 100%;
-  -webkit-text-size-adjust: 100%;
-}
-
-body {
-  margin: 0;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-}
-
-/**
- * If you already use line highlighting
- */
-
-/* Adjust the position of the line numbers */
-.gatsby-highlight pre[class*="language-"].line-numbers {
-  padding-left: 2.8em;
-}
-
-/**
- * If you only want to use line numbering
- */
-
-.gatsby-highlight {
-  background-color: #fdf6e3;
-  border-radius: 0.3em;
-  margin: 0.5em 0;
-  padding: 1em;
-  overflow: auto;
-}
-
-.gatsby-highlight pre[class*="language-"].line-numbers {
-  padding: 0;
-  padding-left: 2.8em;
-  overflow: initial;
-}
-
-/* temp */
-/* the tree node's style */
-.tree-view {
-  overflow-y: hidden;
-}
-
-.tree-view_item {
-  display: flex;
-  cursor: pointer;
-}
-
-.tree-view_item,
-.tree-view_children > div {
-  padding: 4px 0;
-}
-
-/* style for the children nodes container */
-.tree-view_children {
-  margin-left: 16px;
-  display: flex;
-  flex-direction: column;
-  align-items: flex-start;
-}
-
-.tree-view_children-collapsed {
-  height: 0px;
-}
-
-.tree-view_arrow {
-  cursor: pointer;
-  margin-right: 6px;
-  display: inline-block;
-  -webkit-user-select: none;
-  -moz-user-select: none;
-  -ms-user-select: none;
-  user-select: none;
-}
-
-.tree-view_arrow:after {
-  content: "▾";
-}
-
-/* rotate the triangle to close it */
-.tree-view_arrow-collapsed {
-  -webkit-transform: rotate(-90deg);
-  -moz-transform: rotate(-90deg);
-  -ms-transform: rotate(-90deg);
-  transform: rotate(-90deg);
-}