Allow Prettier default for trailing commas, run Prettier on repo

per convo with @claviska

docs/assets/scripts/cheatsheet.js

@@ -13,7 +13,7 @@ const matchers = {
   regexp(textContent, query) {
     query.lastIndex = 0;
     return query.test(textContent);
-  }
+  },
 };
 
 matchers.iregexp = matchers.regexp; // i is baked into the query

docs/assets/scripts/code-examples.js

@@ -43,7 +43,7 @@ document.addEventListener('click', event => {
       js_pre_processor: 'none',
       html,
       css,
-      js
+      js,
     };
 
     const input = document.createElement('input');

docs/assets/scripts/hydration-errors.js

@@ -79,8 +79,8 @@
       diffViewer.appendChild(
         createDiff({
           serverHTML,
-          clientHTML
-        })
+          clientHTML,
+        }),
       );
     });
   }
@@ -88,7 +88,7 @@
   function createDiff({ serverHTML, clientHTML }) {
     const diff = diffLines(serverHTML, clientHTML, {
       ignoreWhitespace: false,
-      newLineIsToken: true
+      newLineIsToken: true,
     });
     const fragment = document.createDocumentFragment();
     for (var i = 0; i < diff.length; i++) {

docs/assets/scripts/preset-theme.js

@@ -11,7 +11,7 @@
     const newStylesheet = Object.assign(document.createElement('link'), {
       href: `/dist/styles/themes/${presetTheme}.css`,
       rel: 'preload',
-      as: 'style'
+      as: 'style',
     });
 
     newStylesheet.addEventListener(
@@ -23,7 +23,7 @@
           stylesheet.remove();
         });
       },
-      { once: true }
+      { once: true },
     );
 
     document.head.append(newStylesheet);

docs/assets/scripts/scroll.js

@@ -15,7 +15,7 @@ document.addEventListener('click', event => {
       event.preventDefault();
       window.scroll({
         top: target.offsetTop - headerHeight,
-        behavior: 'smooth'
+        behavior: 'smooth',
       });
       history.pushState(undefined, undefined, `#${id}`);
     }

docs/assets/scripts/search.js

@@ -9,7 +9,7 @@ const icons = {
   component: 'puzzle-piece',
   document: 'file',
   home: 'house',
-  theme: 'palette'
+  theme: 'palette',
 };
 let searchTimeout;
 
@@ -18,7 +18,7 @@ function getElements() {
   return {
     dialog: document.getElementById('site-search'),
     input: document.getElementById('site-search-input'),
-    results: document.getElementById('site-search-listbox')
+    results: document.getElementById('site-search-listbox'),
   };
 }
 

docs/assets/scripts/turbo.js

@@ -9,7 +9,7 @@ function saveScrollPosition() {
     if (element.id) {
       positions[element.id] = {
         top: element.scrollTop,
-        left: element.scrollLeft
+        left: element.scrollLeft,
       };
     } else {
       console.warn(`Can't save scroll position for elements without an id.`, el);