finish custom class and improved options overhaul

src/lib/TextInput.svelte

@@ -28,13 +28,13 @@
 		validate: validateOpts,
 		invalidMessage = 'Field is required',
 		ref = $bindable<HTMLInputElement | null>(null),
-		class: classList
+		class: classValue
 	}: Props = $props();
 
 	let valid: boolean = $state(true);
 </script>
 
-<div>
+<div class={classValue}>
 	{#if label}
 		<Label for={id}>{label}</Label>
 	{/if}
@@ -50,7 +50,6 @@
 		onvalidate={(e) => {
 			valid = e.detail.valid;
 		}}
-		class={classList}
 	/>
 
 	{#if validateOpts}