standardise formatting in config files

data/config/ntpSettings.json

@@ -1,4 +1,4 @@
 {
-  "server":"pool.ntp.org",
-  "interval":3600
+  "server": "pool.ntp.org",
+  "interval": 3600
 }

data/config/otaSettings.json

@@ -1,5 +1,5 @@
 {
-   "enabled":true,
+  "enabled": true,
   "port": 8266,
   "password": "esp-react"
 }

data/config/securitySettings.json

@@ -1,5 +1,5 @@
 {
-    "jwt_secret":"esp8266-react",
+  "jwt_secret": "esp8266-react",
   "users": [
     {
       "username": "admin",

data/config/wifiSettings.json

@@ -1,6 +1,6 @@
 {
-  "ssid":"",
-  "password":"password",
-  "hostname":"esp8266-react",
-  "static_ip_config":false
+  "ssid": "",
+  "password": "password",
+  "hostname": "esp8266-react",
+  "static_ip_config": false
 }