chore(*): Add base sveltekit files

src/app.d.ts

@@ -0,0 +1,21 @@
+// See https://kit.svelte.dev/docs/types#app
+// for information about these interfaces
+// and what to do when importing types
+declare global {
+	const __DATE__: string;
+	const __RELOAD_SW__: boolean;
+	namespace App {
+		// interface Error {}
+		interface Locals {
+			userid: string;
+			buildDate: string;
+			periodicUpdates: boolean;
+		}
+
+		// interface PageData {}
+		// interface PageState {}
+		// interface Platform {}
+	}
+}
+
+export {};