Extra left margin space in the dropdown menu

Applied a few SCSS/CSS changes, here's some screenshots for review:

More fixes for the mobile menu as well (screenshots attached):

The latest 2.1.x-dev release fixes this: https://www.drupal.org/project/estore/releases/2.1.x-dev →

I'll create a stable release for the 2.1.x branch and a final release for the 8.x-1.x branch

Automatically closed - issue fixed for 2 weeks with no activity.