Save configuration to preferences in NVS

web/config.json

@@ -115,6 +115,14 @@
     "description": "Stop the access point after that many minutes if not used.\n1 to 60 minutes.\n\n'0' means that the access point is permanently enabled.",
     "category": "Wifi"
 },
+{
+    "name": "apHidden",
+    "label": "Hide SSID",
+    "type": "boolean",
+    "default": "false",
+    "description": "Hide Wifi SSID",
+    "category": "Wifi"
+},
 {
     "name": "cpuSpeed",
     "label": "CPU Speed [MHz]",
@@ -139,7 +147,7 @@
     "category": "Hardware"
 },
 {
-    "name": "ledRgbBrightness",
+    "name": "rgbBrightness",
     "label": "RGB-LED brightness",
     "type": "number",
     "default": 64,