Update .prettierrc.js

jsxBracketSameLine deprecated in v2.4.0 of Prettier, replaced by bracketSameLine.

https://prettier.io/docs/en/options.html#deprecated-jsx-brackets

Author: WilliamDecker

.prettierrc.js

@@ -5,7 +5,7 @@ const {esNextPaths} = require('./scripts/shared/pathsByLanguageVersion');
 module.exports = {
   bracketSpacing: false,
   singleQuote: true,
-  jsxBracketSameLine: true,
+  bracketSameLine: true,
   trailingComma: 'es5',
   printWidth: 80,
   parser: 'flow',