Added basic module support

app/types/module.ts

@@ -0,0 +1,8 @@
+import type { VNode } from 'vue';
+
+export interface DashboardModule {
+  name: string;
+  width: number; // Number of grid columns to span
+  height: number; // Number of grid rows to span
+  render: () => VNode | any;
+}