Misc fixes, mostly related to no-joycon controls

source/hid/hid.c

@@ -98,4 +98,9 @@ Inputs *hidWait(){
     while (!(in->buttons))
         hidRead();
     return in;
+}
+
+bool hidConnected(){
+    jc_gamepad_rpt_t *controller = joycon_poll();
+    return (controller->conn_l && controller->conn_r) ? 1 : 0;
 }