Suggestion: Increase header and single max-width / width

[bradthornborrow]

Sorry if this has been raised previously. I suggest the width and max-width in _header.scss and _single.scss be increased to 1000 to allow better use of space on large monitors. I added the following changes for my site using custom.css file and found it looks better on my desktop monitor with no impact on phone or tablet rendering (at least in my testing). I tried 1280px but found that much text looked overly cluttered (to me at least), 1000px seems to be a sweet spot.

.post {
width: 100%;
max-width: 1000px;
}

.header__inner {
max-width: 100%;
width: 960px;
}