Add close button to Viewer

src/components/atoms/ButtonCircle.svelte

@@ -1,4 +1,6 @@
 <script lang="ts">
+    export let tag: string = 'button'
+    export let url: string = undefined
     export let color: string = undefined
     export let size: string = undefined
     export let type: string = undefined
@@ -14,12 +16,24 @@
     ].join(' ').trim()
 </script>
 
-<button {type} {form} class={classes} on:click disabled={disabled}>
-    {#if clone}
-        {#each Array(2) as _}
+{#if tag === 'a'}
+    <a href={url} class={classes} on:click>
+        {#if clone}
+            {#each Array(2) as _}
+                <slot />
+            {/each}
+        {:else}
             <slot />
-        {/each}
-    {:else}
-        <slot />
-    {/if}
-</button>
+        {/if}
+    </a>
+{:else}
+    <button {type} {form} class={classes} disabled={disabled} on:click>
+        {#if clone}
+            {#each Array(2) as _}
+                <slot />
+            {/each}
+        {:else}
+            <slot />
+        {/if}
+    </button>
+{/if}