🔧 add snowpack config

define usefull aliases

snowpack.config.mjs

@@ -0,0 +1,15 @@
+// Example: astro.config.mjs
+
+// @type-check enabled!
+// VSCode and other TypeScript-enabled text editors will provide auto-completion,
+// helpful tooltips, and warnings if your exported object is invalid.
+// You can disable this by removing "@ts-check" and `@type` comments below.
+
+// @ts-check
+export default /** @type {import('astro').AstroUserConfig} */ ({
+  alias: {
+    $components: "./src/components",
+    $layouts: "./src/layouts",
+    $: "./src",
+  },
+});