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/Icon/Icon.Skeleton.svelte

@@ -5,9 +5,12 @@
   export let style = undefined;
 
   import { cx, css } from '../../lib';
-
-  const _class = cx('--icon--skeleton', className);
-  const _style = css([style, ['width', `${size}px`], ['height', `${size}px`]]);
 </script>
 
-<div on:click on:mouseover on:mouseenter on:mouseleave class={_class} style={_style} />
+<div
+  on:click
+  on:mouseover
+  on:mouseenter
+  on:mouseleave
+  class={cx('--icon--skeleton', className)}
+  style={css([style, ['width', `${size}px`], ['height', `${size}px`]])} />