Edit blocklists and rules in the web UI

An Edit button opens a dialog for a list's name, URL, views and comment,
or a rule's action, scope, views and comment. The download-now button is
called Refresh. Checkboxes in dialogs are no longer stretched.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/web/static/assets/style.css

@@ -171,6 +171,7 @@ textarea { width: 100%; min-height: 80px; resize: vertical; }
 .form-grid > label { padding-top: 6px; color: var(--muted); }
 .form-grid .help { grid-column: 2; margin-top: -4px; color: var(--muted); font-size: 12px; }
 .form-grid input, .form-grid select { width: 100%; max-width: 560px; }
+.form-grid input[type=checkbox] { width: auto; }
 .inline-form { display: flex; gap: 6px; flex-wrap: wrap; align-items: flex-end; }
 .inline-form .f { display: flex; flex-direction: column; gap: 2px; }
 .inline-form .f label:not(.check) { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.3px; }