bulma (file, components): fix color fo icons: icons have no color specified anymore for a while, and use the color of parent elements. As they are often used in a `<a>` element (to work without javascript), they are often using a link color. This commit change a few icons to use a dark color instead.

@charset "utf-8";
$primary: #82baff;
$body-background-color: #eaeaea;

@import "node_modules/bulma/bulma.sass";