refactor(components): convert const to reactive where appropriate

- Inline class assignments to avoid script-level clutter
- Ignore a11y-missing-attribute instead of redundant href

src/components/FormLabel/FormLabel.svelte

@@ -5,10 +5,15 @@
   export let style = undefined;
 
   import { cx } from '../../lib';
-
-  const _class = cx('--form-item', className);
 </script>
 
-<label on:click on:mouseover on:mouseenter on:mouseleave for={id} class={_class} {style}>
+<label
+  on:click
+  on:mouseover
+  on:mouseenter
+  on:mouseleave
+  for={id}
+  class={cx('--form-item', className)}
+  {style}>
   <slot />
 </label>