Let config sections fill the container width

Drop .config-section's 32rem cap -- the project name and status forms
now stretch to whatever width .card.project actually has instead of
sitting narrower than the header above them for no reason.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

web/src/style.css

@@ -691,7 +691,6 @@ h1 {
 /* --- project configuration: status list ------------------------------- */
 
 .config-section {
-  max-width: 32rem;
   margin-top: 1.5rem;
 }