Add global styles component

components/GlobalStyles.tsx

@@ -0,0 +1,30 @@
+import { FC, useContext } from 'react';
+import { createGlobalStyle } from 'styled-components';
+import { DarkModeContext } from '../components/DarkMode';
+
+export interface Props {
+	dark: boolean;
+}
+
+const Global = createGlobalStyle<Props>`
+  * {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+		font-family: 'Source Code Pro', monospace;
+		font-size: 17px;
+  }
+
+	body {
+		background: ${({ dark }) => (dark ? '#262626' : '#F9F9F9')};
+    color: ${({ dark }) => (dark ? 'white' : 'black')};
+	}
+`;
+
+const GlobalStyles: FC = () => {
+	const { dark } = useContext(DarkModeContext);
+
+	return <Global dark={dark} />;
+};
+
+export default GlobalStyles;