feat: move svelte interface to 'src/interface'

src/interface/components/Spinner.svelte

@@ -0,0 +1,34 @@
+<script lang="ts">
+  let { size = 'md', color = 'currentColor' } = $props();
+
+  const sizeMap = {
+    sm: '1rem',
+    md: '2rem',
+    lg: '3rem',
+  };
+
+  let dimensions = $derived(sizeMap[size as keyof typeof sizeMap] || size);
+</script>
+
+<svg
+  class="animate-spin"
+  xmlns="http://www.w3.org/2000/svg"
+  fill="none"
+  viewBox="0 0 24 24"
+  width={dimensions}
+  height={dimensions}
+>
+  <circle
+    class="opacity-25"
+    cx="12"
+    cy="12"
+    r="10"
+    stroke={color}
+    stroke-width="4"
+  ></circle>
+  <path
+    class="opacity-75"
+    fill={color}
+    d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
+  ></path>
+</svg>