rnovino You need to edit file vendor/flarum/core/js/forum/dist/app.js
Find IndexPage-results sideNavOffset, and move up three lines, then add codes on it.
),
m('a', {href: 'YOUR URL'}, m('img', {src: 'IMAGE URL'})) /* your codes here */
),
m(
'div',
{ className: 'IndexPage-results sideNavOffset' },
