Refine .gitignore

Author: frodrigo

.gitignore

@@ -8,7 +8,8 @@ web/po/vue.pot
 
 web_api/session/
 web_api/public/
-web_api/static/
+web_api/static/images
+web_api/static/node_modules
 
 web/static/.webassets-cache/
 web/static/gen/