refact: rename Column components to be generic

src/components/Sidebar/index.tsx

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+import { Link } from "gatsby"
+import React, { FC, HTMLAttributes, PropsWithChildren } from "react"
+import Scrollbar from "react-perfect-scrollbar"
+import "react-perfect-scrollbar/dist/css/styles.css"
+import Banner from "../../images/tph-banner.svg"
+import { ThemeToggler } from "../ThemeToggler"
+import * as SC from "./styles"
+
+interface IMenuItemProps {
+  to: string
+}
+
+const MenuItem: FC<IMenuItemProps> = ({ children, to }) => {
+  return (
+    <SC.MenuItem to={to} activeClassName="active">
+      {children}
+    </SC.MenuItem>
+  )
+}
+
+export const Sidebar: FC<
+  PropsWithChildren<HTMLAttributes<HTMLDivElement>>
+> = props => {
+  const { children, ...restProps } = props
+
+  return (
+    <SC.SidebarWrapper {...restProps}>
+      <Scrollbar>
+        <Link to="/">
+          <Banner />
+        </Link>
+        <SC.Inner>
+          {children}
+
+          <SC.Menu>
+            <MenuItem to="/about">about</MenuItem>
+            <MenuItem to="/rules">rules</MenuItem>
+            <MenuItem to="/faq">faq</MenuItem>
+            <MenuItem to="/">hotbot</MenuItem>
+            <MenuItem to="/resources">resources</MenuItem>
+            <MenuItem to="/archives">tech spotlights</MenuItem>
+          </SC.Menu>
+
+          <ThemeToggler />
+        </SC.Inner>
+      </Scrollbar>
+    </SC.SidebarWrapper>
+  )
+}

src/components/Sidebar/styles.tsx

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+import { Link } from "gatsby"
+import styled from "styled-components"
+
+export const SidebarWrapper = styled.div`
+  box-sizing: border-box;
+  flex: 0 0 320px;
+  background: ${props => props.theme.sidebar.background};
+  color: ${props => props.theme.sidebar.foreground};
+  position: fixed;
+  top: 0;
+  bottom: 0;
+  width: 320px;
+
+  @media screen and (max-width: 767px) {
+    z-index: 100;
+    width: auto;
+    /* TODO: maybe find a less "awkward" way to animate this */
+    left: calc(-100% - 100px);
+    right: calc(100% - 0px);
+    transition: left 0.3s, right 0.3s;
+  }
+
+  &.is-open {
+    left: 0;
+    right: 100px;
+    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
+  }
+`
+
+export const Inner = styled.div`
+  padding: 30px 0 30px 20px;
+`
+
+export const Menu = styled.nav`
+  display: flex;
+  flex-direction: column;
+  border-top: 1px dashed #a5a5a5;
+  margin: 20px 0 40px;
+  padding-top: 20px;
+`
+
+export const MenuItem = styled(Link)`
+  padding: 4px 0;
+  font-size: 20px;
+  color: ${props => props.theme.sidebar.foreground};
+  text-decoration: none;
+
+  &:hover,
+  &:active {
+    text-decoration: underline;
+  }
+
+  &.active {
+    font-weight: 700;
+  }
+`