chore: add prettier frontent linter

frontend/src/utils/css.js

@@ -1,28 +1,28 @@
-export default function getRule (rules) {
+export default function getRule(rules) {
   for (let i = 0; i < rules.length; i++) {
-    rules[i] = rules[i].toLowerCase()
+    rules[i] = rules[i].toLowerCase();
   }
 
-  let result = null
-  let find = Array.prototype.find
+  let result = null;
+  let find = Array.prototype.find;
 
-  find.call(document.styleSheets, styleSheet => {
-    result = find.call(styleSheet.cssRules, cssRule => {
-      let found = false
+  find.call(document.styleSheets, (styleSheet) => {
+    result = find.call(styleSheet.cssRules, (cssRule) => {
+      let found = false;
 
       if (cssRule instanceof window.CSSStyleRule) {
         for (let i = 0; i < rules.length; i++) {
           if (cssRule.selectorText.toLowerCase() === rules[i]) {
-            found = true
+            found = true;
           }
         }
       }
 
-      return found
-    })
+      return found;
+    });
 
-    return result != null
-  })
+    return result != null;
+  });
 
-  return result
+  return result;
 }