Add SameSite to auth cookie.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "umami",
-  "version": "0.10.3",
+  "version": "0.10.4",
   "description": "A simple, fast, website analytics alternative to Google Analytics. ",
   "author": "Mike Cao <mike@mikecao.com>",
   "license": "MIT",

pages/api/auth/login.js

@@ -15,6 +15,7 @@ export default async (req, res) => {
     const cookie = serialize(AUTH_COOKIE_NAME, token, {
       path: '/',
       httpOnly: true,
+      sameSite: true,
       maxAge: 60 * 60 * 24 * 365,
     });