Use small table-label font size for activation toggle text

styleguide.css

@@ -1799,7 +1799,7 @@ section + section {
   z-index: 2;
   text-align: center;
   font-family: var(--font-family-base);
-  font-size: var(--font-size-base);
+  font-size: var(--font-size-small);
   font-weight: var(--font-weight-regular);
   line-height: var(--layout-mode-toggle-local-height);
   text-transform: lowercase;