Add custom about page and TOS

src/components/About.tsx

@@ -0,0 +1,190 @@
+import { useCallback, useState } from 'react';
+import styled from 'styled-components';
+import Button from './Button.tsx';
+
+const CloseButton = ({
+  setVisible,
+}: {
+  setVisible: (show: boolean) => void;
+}) => {
+  const close = useCallback(() => {
+    setVisible(false);
+  }, [setVisible]);
+  return (
+    <div
+      style={{
+        position: 'absolute',
+        top: '5px',
+        right: '5px',
+      }}
+    >
+      <Button style={{ padding: '5px' }} onClick={close}>
+        [X]
+      </Button>
+    </div>
+  );
+};
+
+export default function About({
+  setVisible,
+}: {
+  setVisible: (show: boolean) => void;
+}) {
+  const [showTos, setShowTos] = useState<boolean>(false);
+
+  if (showTos) {
+    return <Tos setVisible={setShowTos} />;
+  }
+
+  return (
+    <AboutPanel>
+      <CloseButton setVisible={setVisible} />
+      <BannerContainer>
+        <Banner>{'{paste}'}</Banner>
+      </BannerContainer>
+      <p>
+        <b>paste is a simple web app for writing & sharing code</b>. It's a
+        different take on conventional pastebin sites like pastebin.com or
+        hastebin.
+      </p>
+      {window.location.hostname === 'pastes.dev' && (
+        <>
+          <p>
+            <b>pastes.dev</b> is the official, publicly accessible paste
+            instance, and can be used by anyone, subject to the{' '}
+            <a
+              href="#"
+              onClick={e => {
+                setShowTos(true);
+                e.preventDefault();
+              }}
+            >
+              Terms of Service
+            </a>
+            .
+          </p>
+          <p>
+            To access pastes.dev programmatically, please use the{' '}
+            <a href="https://github.com/lucko/paste#readme" target="_blank">
+              API
+            </a>
+            . :)
+          </p>
+          <p>
+            Please{' '}
+            <b>
+              <a
+                href="#"
+                onClick={e => {
+                  setShowTos(true);
+                  e.preventDefault();
+                }}
+              >
+                report
+              </a>
+            </b>{' '}
+            illegal, malicious, or abusive content so it can be removed.
+          </p>
+        </>
+      )}
+      <p style={{ textAlign: 'center' }}>
+        <a href="https://github.com/lucko/paste" target="_blank">
+          paste
+        </a>{' '}
+        is free & open source on GitHub.
+        <br />
+        Copyright &copy; 2021-{new Date().getFullYear()}{' '}
+        <a href="https://github.com/lucko" target="_blank">
+          lucko
+        </a>{' '}
+        & other paste{' '}
+        <a
+          href="https://github.com/lucko/paste/graphs/contributors"
+          target="_blank"
+        >
+          contributors
+        </a>
+        .
+      </p>
+    </AboutPanel>
+  );
+}
+
+const Tos = ({ setVisible }: { setVisible: (show: boolean) => void }) => {
+  return (
+    <AboutPanel>
+      <CloseButton setVisible={setVisible} />
+      <h1>Terms of Service</h1>
+      <p>
+        Welcome to pastes.dev. By using this service, you agree to the following
+        terms:
+      </p>
+      <ol>
+        <li>
+          <b>No Illegal Use:</b> You may not use pastes.dev to share, store, or
+          distribute any content that is illegal, harmful, or violates any laws
+          or regulations.
+        </li>
+        <li>
+          <b>No Malicious Content:</b> Do not upload or share content intended
+          to harm others, including but not limited to malware, phishing links,
+          or personal data without consent.
+        </li>
+        <li>
+          <b>Content Responsibility:</b> You are solely responsible for the
+          content you post. We do not review content and are not liable for what
+          users choose to share.
+        </li>
+        <li>
+          <b>Moderation:</b> We reserve the right to remove any content at our
+          discretion, and to restrict or terminate access to the service for
+          abuse or violations of these terms.
+        </li>
+        <li>
+          <b>No Guarantees:</b> This service is provided "as is" with no
+          warranties. We do not guarantee uptime, data retention, or
+          availability.
+        </li>
+      </ol>
+      <p>
+        By using pastes.dev, you accept these terms. If you do not agree, please
+        do not use the service.
+      </p>
+      <p>
+        <b>Reporting Abuse</b>
+        <br />
+        If you encounter illegal or malicious content, please report it by email
+        to report-abuse {'<at>'} pastes.dev.
+      </p>
+    </AboutPanel>
+  );
+};
+
+const AboutPanel = styled.div`
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  z-index: 99;
+  max-width: 650px;
+
+  color: ${props => props.theme.primary};
+  background-color: ${props => props.theme.secondary};
+
+  padding: 10px;
+`;
+
+const BannerContainer = styled.div`
+  display: flex;
+  justify-content: center;
+`;
+
+const Banner = styled.div`
+  background-color: ${props => props.theme.background};
+  color: ${props => props.theme.logo};
+  border-radius: 20px;
+  font-size: 70px;
+  letter-spacing: -5px;
+  padding: 10px;
+  font-weight: bold;
+`;