Add migrations and code for sharedAdventures table

src/lib/index.ts

@@ -1 +1,11 @@
 // place files you want to import through the `$lib` alias in this folder.
+export function generateRandomString() {
+    let randomString = '';
+    const digits = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
+
+    for (let i = 0; i < 10; i++) {
+        const randomIndex = Math.floor(Math.random() * digits.length);
+        randomString += digits[randomIndex];
+    }
+    return randomString;
+}