wifi: preliminary fix for leases setup order

see 69c65a6a40 (commitcomment-42008295)
Because of the way DHCP is integrated into the Core logic, we need to
call wifi_softap_add_dhcps_lease(...) inbetween WiFi.softApConfig(...) and WiFi.softAp(...)

code/espurna/wifi.cpp

@@ -759,15 +759,13 @@ void wifiSetup() {
 
     _wifiConfigure();
 
-    if (WiFiApMode::Enabled ==_wifi_ap_mode) {
-        jw.enableAP(true);
-        jw.enableSTA(true);
-    }
-
     // Note that maximum amount of stations is set by `WiFi.softAP(...)` call, but justwifi handles that.
     // Default is 4, which we use here. However, maximum is 8. ref:
     // https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/soft-access-point-class.html#softap
-    #if WIFI_AP_LEASES_SUPPORT
+#if WIFI_AP_LEASES_SUPPORT
+    wifiRegister([](justwifi_messages_t code, char*) {
+        if (MESSAGE_ACCESSPOINT_CREATING != code) return;
+
         for (unsigned char index = 0; index < 4; ++index) {
             auto lease = getSetting({"wifiApLease", index});
             if (12 != lease.length()) {
@@ -781,7 +779,13 @@ void wifiSetup() {
 
             wifi_softap_add_dhcps_lease(mac);
         }
-    #endif
+    });
+#endif
+
+    if (WiFiApMode::Enabled ==_wifi_ap_mode) {
+        jw.enableAP(true);
+        jw.enableSTA(true);
+    }
 
     #if JUSTWIFI_ENABLE_SMARTCONFIG
         if (_wifi_smartconfig_initial) jw.startSmartConfig();