CLN: add custom css to remove site header

[loganthomas]

Currently, there is a dark line across the site. This is hard to see when chrome in in dark mode, but evident when in light mode.

This is not an issue with the HTML or CSS but actually the default for minima theme: https://jekyll.github.io/minima/

Solution

https://docs.github.com/en/pages/setting-up-a-github-pages-site-with-jekyll/adding-a-theme-to-your-github-pages-site-using-jekyll#customizing-your-themes-css

• Be sure to update local minima to reflect this as well (possible for local and GitHub pages to be out of sync)

$ bundle info --path minima
/usr/local/lib/ruby/gems/3.0.0/gems/minima-2.5.1

• Open above in vscode and search for "site-header" (or whatever element you're trying to change)
• Update in the local and within assets/css/style.scss file
• For example, both files were updated with site-header as below

.site-header {
    // border-top: 5px solid $grey-color-dark;
    border-bottom: 1px solid $grey-color-light;
    min-height: $spacing-unit * 1.865;

    // Positioning context for the mobile navigation icon
    position: relative;
}