I highly encourage you to group your files (html / js) by feature rather than file type. This approach will significantly ease development for you.
So your directory should look like this:
app/ login/ login.controller.js login.template.html login.scss
You may use a task runner (Gulp / Grunt) to compile and copy the files into dest (www) directory.
Check out angular style guide by John Papa. A great resource for working with angular with, bearing practices in mind.