Allow disable attribute for SelectableTile

src/Tile/SelectableTile.svelte

@@ -5,6 +5,9 @@
   /** Set to `true` to enable the light variant */
   export let light = false;
 
+  /** Set to `true` to disable the tile */
+  export let disabled = false;
+
   /** Specify the title of the selectable tile */
   export let title = "title";
 
@@ -47,6 +50,7 @@
   value="{value}"
   name="{name}"
   title="{title}"
+  disabled="{disabled}"
 />
 <label
   for="{id}"