Birthdays should always appear in the first column of a year

[punchagan]

I'm not sure how exactly this is done by @busterbenson, but it looks much prettier when the weeks are all starting with birthday.

For example, see busterbenson's site vs what react-life-timeline produces.

Since, an year can't be fit into exactly 52 weeks - I am not sure if the calendar on buster's site is dropping off the extra day (or two).