changing page width brerakpoints to show 3 albums at a time correctly for each year teaser

So the reason the button was off is... well the button wasn't mis-aligned here it was actually the container width was too wide when showing 3 at a time on the teaser for each year before expanding.

You don't need to merge this pull request if you would rather change the number of albums showing in each year to "4" instead of "3".   Ideally when you hit "See more" that button would add a class to the container div so I could change the width of the page to show more on a line like how it works in the "Tracks" section. Rigth now it will only show 3 on a row even at wide screen size. 

that said. the alignment is centered now with 3 showing up under each year, so you can merge this in to get it submitted and we can adjust later to improve it.