Fix windows CI issues

Author: canova

.gitattributes

@@ -1,3 +1,6 @@
+# Normalize line endings to LF on all platforms.
+* text=auto eol=lf
+
 # The following are not technically binary, but this makes it so that git does not try
 # and treat them like normal text.
 *.min.js binary

.prettierrc.js

@@ -1,4 +1,5 @@
 module.exports = {
   singleQuote: true,
   trailingComma: 'es5',
+  endOfLine: 'lf',
 };