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.

{% import 'components/avatar.html' as avatar with context %}

{{ avatar.avatar(entity, "is-64x64") }}