[eslint] enable and auto + manually fix implicit-arrow-linebreak

Author: ljharb

.eslintrc

@@ -39,7 +39,6 @@
         "no-continue": 1,
         "global-require": 1,
         "no-restricted-syntax": 1,
-        "implicit-arrow-linebreak": 1,
         "valid-jsdoc": 1,
     },
     "overrides": [

lib/rules/jsx-sort-props.js

@@ -121,11 +121,9 @@ const generateFixerFunction = (node, context, reservedList) => {
   const options = {ignoreCase, callbacksLast, shorthandFirst, shorthandLast,
     noSortAlphabetically, reservedFirst, reservedList};
   const sortableAttributeGroups = getGroupsOfSortableAttributes(attributes);
-  const sortedAttributeGroups = sortableAttributeGroups.slice(0).map(group =>
-    group.slice(0).sort((a, b) =>
-      contextCompare(a, b, options)
-    )
-  );
+  const sortedAttributeGroups = sortableAttributeGroups
+    .slice(0)
+    .map(group => group.slice(0).sort((a, b) => contextCompare(a, b, options)));
 
   return function (fixer) {
     const fixers = [];