Upgrade Prettier from 1.17 to 2.0.2.

Summary:
This gets us on the latest Prettier 2.x:
https://prettier.io/blog/2020/03/21/2.0.0.html

Notably, this adds support for TypeScript 3.8,
which introduces new syntax, such as `import type`.

Reviewed By: zertosh

Differential Revision: D20636268

fbshipit-source-id: fca5833d003804333a05ba16325bbbe0e06d6c8a

website/src/components/Playground/src/CodeJavaScript.js

@@ -27,9 +27,11 @@ export const JSEnumLookup = {
 };
 
 function getEnum(yogaEnum: string, value: string | number): string {
-  return `yoga.${Object.keys(yoga)
-    .filter(key => key.toLowerCase().startsWith(yogaEnum.toLowerCase()))
-    .find(key => yoga[key] === value) || value}`;
+  return `yoga.${
+    Object.keys(yoga)
+      .filter(key => key.toLowerCase().startsWith(yogaEnum.toLowerCase()))
+      .find(key => yoga[key] === value) || value
+  }`;
 }
 
 function setProperty(

website/src/components/Playground/src/CodeLitho.js

@@ -47,8 +47,8 @@ function dipOrPercent(value) {
   return value === 'auto'
     ? 'Auto'
     : typeof value === 'string' && /%$/.test(value)
-      ? 'Percent'
-      : 'Dip';
+    ? 'Percent'
+    : 'Dip';
 }
 
 function getValue(value) {

website/src/components/Playground/src/URLShortener.js

@@ -52,9 +52,7 @@ export default class URLShortener extends Component<{}, State> {
         }
 
         fetch(
-          `https://cors-anywhere.herokuapp.com/tinyurl.com/api-create.php?url=${
-            window.location.href
-          }`,
+          `https://cors-anywhere.herokuapp.com/tinyurl.com/api-create.php?url=${window.location.href}`,
         )
           .then(res => res.text())
           .then(shortURL => this.setState({shortURL, loading: false}))

website/src/components/Playground/src/YogaEnumSelect.js

@@ -57,10 +57,7 @@ export default class YogaEnumSelect extends Component<Props> {
 
   getTitle = (property: string, key: string): string => {
     const replacer = new RegExp(`^${property}_`);
-    return key
-      .replace(replacer, '')
-      .replace('_', ' ')
-      .toLowerCase();
+    return key.replace(replacer, '').replace('_', ' ').toLowerCase();
   };
 
   render() {

website/src/pages/docs/index.js

@@ -49,17 +49,16 @@ export default ({data}) => (
                   ({node}) =>
                     node.fileAbsolutePath.indexOf(`/${category}/`) > -1,
                 )
-                .map(
-                  ({node}) =>
-                    node.frontmatter.redirect ? (
-                      <a key={node.id} href={node.frontmatter.path}>
-                        {node.frontmatter.title}
-                      </a>
-                    ) : (
-                      <Link key={node.id} to={node.frontmatter.path}>
-                        {node.frontmatter.title}
-                      </Link>
-                    ),
+                .map(({node}) =>
+                  node.frontmatter.redirect ? (
+                    <a key={node.id} href={node.frontmatter.path}>
+                      {node.frontmatter.title}
+                    </a>
+                  ) : (
+                    <Link key={node.id} to={node.frontmatter.path}>
+                      {node.frontmatter.title}
+                    </Link>
+                  ),
                 )}
             </Col>
           ),