feat: 添加创建页面的导航逻辑，设置当前激活状态为数据集

src/routes/create/+page.svelte

@@ -0,0 +1,8 @@
+<script lang="ts">
+import { afterNavigate } from '$app/navigation';
+import { currentActivate } from '$lib/stores/navigate';
+
+afterNavigate(() => {
+  currentActivate.set('dataset');
+});
+</script>