Allow jsx to be highlighted in .js

There's usage of jsx in .js out there.

Change-Id: I0664b734ee058f7b73d37dcb151856aee1ead48a

web/element/language.ts

diff --git a/web/element/language.ts b/web/element/language.ts
index ce52f63..172f852 100644
--- a/web/element/language.ts
+++ b/web/element/language.ts
@@ -213,11 +213,10 @@
     case 'text/x-ruby':
       return StreamLanguage.define(ruby);
     case 'text/javascript':
-      return javascript();
-    case 'text/x-erlang':
-      return StreamLanguage.define(erlang);
     case 'text/jsx':
       return javascript({jsx: true});
+    case 'text/x-erlang':
+      return StreamLanguage.define(erlang);
     case 'text/x-spreadsheet':
       return StreamLanguage.define(spreadsheet);
     case 'text/x-fortran':