Add setting for font size

src/lib/components/Field.svelte

@@ -3,20 +3,28 @@
 
   interface Props {
     label?: Snippet
+    secondary?: Snippet
     input?: Snippet
     info?: Snippet
     [key: string]: any
   }
 
-  const {label, input, info, ...props}: Props = $props()
+  const {label, secondary, input, info, ...props}: Props = $props()
 </script>
 
 <div class="flex flex-col gap-2 {props.class}">
-  {#if label}
-    <label class="flex items-center gap-2 font-bold">
-      {@render label()}
-    </label>
-  {/if}
+  <div class="flex items-center justify-between">
+    {#if label}
+      <label class="flex items-center gap-2 font-bold">
+        {@render label()}
+      </label>
+    {/if}
+    {#if secondary}
+      <label class="flex items-center gap-2">
+        {@render secondary()}
+      </label>
+    {/if}
+  </div>
   {@render input?.()}
   {#if info}
     <p class="text-sm">