Use inline JS styles (applySearchLayout) instead of CSS-only approach
for search panel layout - fixes Firefox compatibility where cross-origin
Material stylesheets override !important rules. Adds explicit height,
flex layout, z-index, and background on search elements. Also fixes
click-to-exit by deferring DOM queries to DOMContentLoaded. Syncs
header-builder.service.ts with main.html changes.
Bunker Admin
