Add services.yml to set session cookie length * 10

web/sites/default/services.yml

@@ -0,0 +1,7 @@
+parameters:
+  session.storage.options:
+    # Set session cookie lifetime (in seconds), i.e. the time from the session
+    # is created to the cookie expires, i.e. when the browser is expected to
+    # discard the cookie. The value 0 means "until the browser is closed".
+    # @default 2000000
+    cookie_lifetime: 20000000