Add support for child/parent-themes

Great work, been looking for a plugin like this!

Right now it always searches get_template_directory() for blade-templates, which means if you're using a child-theme, it will look in the parent's theme directory. It would be better if it would search get_stylesheet_directory() first, and if the view isn't found there, it uses get_template_directory(). This pull-request fixes that.