feat: settings risk sections as 2x2 nested subcards

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/common/static/instance_theme.css

@@ -2201,6 +2201,38 @@ html[data-theme="light"] .journal-detail-img-thumb {
   font-size: 0.8rem;
 }
 
+.settings-risk-sections {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 12px;
+  margin-top: 14px;
+}
+
+.settings-subcard {
+  padding: 12px 14px;
+  min-width: 0;
+  margin: 0;
+}
+
+.settings-subcard-title {
+  margin: 0 0 10px;
+  font-size: 0.9rem;
+  font-weight: 600;
+  color: #cfd3ef;
+}
+
+.settings-kv--compact .settings-kv-row {
+  grid-template-columns: 8.5em 1fr;
+  padding: 5px 0;
+  font-size: 0.8rem;
+}
+
+@media (max-width: 720px) {
+  .settings-risk-sections {
+    grid-template-columns: minmax(0, 1fr);
+  }
+}
+
 .settings-section {
   margin-top: 14px;
   padding-top: 12px;
@@ -2282,6 +2314,7 @@ html[data-theme="light"] .settings-section {
   border-top-color: #d0dae4;
 }
 
+html[data-theme="light"] .settings-subcard-title,
 html[data-theme="light"] .settings-section h3,
 html[data-theme="light"] .settings-kv-value {
   color: #142232;