fix(deploy): polish subdomain field UI

- Remove "Automatikusan generálva" badge from domain field (it's not
  generated, it's the customer's configured domain)
- Shrink subdomain input width (8rem) so the .domain suffix appears
  directly next to it on the same line
- Suppress redundant "Az alkalmazás aldomainje" description hint for
  subdomain fields (the warning hint is sufficient)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

controller/internal/web/templates/style.css

@@ -575,7 +575,7 @@ select.form-control option { background: var(--bg-secondary); color: var(--text-
 .input-with-button { display: flex; gap: .5rem; }
 .input-with-button .form-control { flex: 1; }
 .subdomain-input-group { display: flex; align-items: center; }
-.subdomain-input-group .subdomain-input { max-width: 14rem; border-top-right-radius: 0; border-bottom-right-radius: 0; border-right: none; }
+.subdomain-input-group .subdomain-input { width: 8rem; border-top-right-radius: 0; border-bottom-right-radius: 0; border-right: none; }
 .subdomain-input-group .subdomain-suffix {
     padding: .55rem .75rem; background: var(--bg-primary); border: 1px solid var(--border-color);
     border-left: none; border-radius: 0 8px 8px 0; color: var(--text-secondary);