fix(prettier): Properly handle lint-stage files (#6970)

Now handles top level files and recursive files in folders.

Set max line length to be 100

src/ClientSDK.js

@@ -1,7 +1,7 @@
 var semver = require('semver');
 
 function compatible(compatibleSDK) {
-  return function(clientSDK) {
+  return function (clientSDK) {
     if (typeof clientSDK === 'string') {
       clientSDK = fromString(clientSDK);
     }