Navigation button move to the left

the answer will depend on how far left! I think what you're referring to is that the left of the lines within the burger menu is further in than the right of the cart. this is because the burger menu button has its own padding on the left and right of 6px. you can remove this by adding some css to your site.

go to the main Design menu and click custom css. add the following code to your custom css

button.header-burger-btn.burger {
    padding-left: 0;
}

this will remove the buttons internal padding and should make it more symmetrical with the cart logo.

if you want to move it further than that you'll need to alter different classes that affect the padding of the whole menu bar. but I think this is beyond the change you're trying to make.