Proposal for simplification of stylesheets regarding font size and line spacing

[benlk]

In Largo 0.6, the style for most text in a story is scoped to p {} because most text is in a paragraph. When text by accident or effort lands in .entry-content without a wrapping p, the text adopts styles from body, which means a different font size and line spacing.

Why not:

• use base body styles for paragraph text and all post text
• rejigger all other font sizes and line spacing so they're based off of that baseline instead
• reduce the number of places Largo declares font size and font-style and font-family, and reduce the specificity of those selectors, to make it easier to theme Largo

[MirandaEcho]

Making styles easier to override with brand coloration/fonts

[benlk]

start with 2h of cleanup, then see what needs to be done to fix the edits made.

[benlk]

Adding to this task:

https://github.com/INN/largo/blob/512da701664b329f2f92244bbe54880a6e146431/less/inc/typography.less#L79-L80

We don't need the extra classes for widgets and post-content specifically. Could probably also lose the color choice.

[benlk]

We probably don't need .stories h3.widgettitle here:

https://github.com/INN/largo/blob/512da701664b329f2f92244bbe54880a6e146431/less/inc/widgets.less#L103-L113