Update h1-6 and top tag to @font-header

[joshdarby]

Changes

This pull request makes the following changes:

• Updates h1-h6 and .top-tag to use font-header instead of font-body

Before (ignore missing images):

After (ignore missing images):

Why

For #154

Testing/Questions

Features that this PR affects:

• Font used for headings and top tags

Questions that need to be answered before merging:

• Is this PR targeting the correct branch in this repository?
• Do we need to update the font for any other type of element?
• Should we also update the tt-plain and tt-fancy mixins?

  umbrella-citylimits/wp-content/themes/citylimits/less/top-tag.less

  Lines 41 to 69 in 63e7406

  	.tt-plain {
  	border: 1px solid @red;
  	width: auto;
  	display: inline-block;
  	clear: both;
  	&::after {
  	display: table;
  	content: "";
  	clear: both;
  	}
  	}
  	.tt-fancy {
  	margin-left: auto;
  	margin-right: auto;
  	clear: both;
  	max-width: calc( 100% - (2 * @measure ) );
  	//width: min-content;
  	width: auto;
  	text-align: center;
  	border-width: @measure * 0.5;
  	border-color: @white;
  	border-style: solid;
  	border-image: url("/wp-content/themes/citylimits/img/top-term-border-image.png"); // absolute URL because this is a mixin that may be called from the homepage stylesheet.
  	border-image-slice: 24 24 24 24;
  	border-image-repeat: space;
  	}

Steps to test this PR:

1. View the site and make sure no fonts are wrong or missing