refactor: Update .gitignore and package.json, and add database functionality

src/lib/db.ts

@@ -0,0 +1,31 @@
+import { sql } from '@vercel/postgres';
+import { config } from 'dotenv';
+ 
+var hasLoadedEnv = false;
+function loadEnv() {
+    if (hasLoadedEnv) {
+        return;
+    }
+    config();
+}
+
+async function createDownloadsTable() {
+    loadEnv();
+    await sql`
+        CREATE TABLE IF NOT EXISTS downloads (
+        id SERIAL PRIMARY KEY,
+        platform TEXT NOT NULL,
+        count INT NOT NULL
+        );
+    `;
+} 
+
+export async function addDownload(platform: string) {
+    await createDownloadsTable();
+    await sql`
+        INSERT INTO downloads (platform, count)
+        VALUES (${platform}, 1)
+        ON CONFLICT (platform)
+        DO UPDATE SET count = downloads.count + 1;
+    `;
+}