Was a separate top page-header bar above every page's content. Moved
into the vertical navbar itself using Tabler's own .navbar-footer
class (order:1 + margin-top:auto), which pins it to the bottom of the
sidebar regardless of how many nav items are above it. Removed the
now-empty page-header entirely.
Verified visually in the browser at both desktop width (sidebar is
position:fixed there — footer sits flush at the bottom) and mobile
width (collapsed dropdown menu — footer just follows the nav list).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>