Move includes to cpp files

include/config.h

@@ -1,8 +1,6 @@
 #ifndef CONFIG_H_
 #define CONFIG_H_
 
-#include "FS.h"
-#include "LittleFS.h"
 #include <ArduinoJson.h>
 
 typedef struct {

include/wlan.h

@@ -2,7 +2,6 @@
 #define WLAN_H
 
 #include "config.h"
-#include <ESP8266WiFi.h>
 #include <PubSubClient.h>
 
 void initial_connection(const char *ssid, const char *psk,

src/config.cpp

@@ -1,4 +1,5 @@
 #include "config.h"
+#include "LittleFS.h"
 
 void initialize_config(Config *config, JsonDocument json) {
     config->ssid = strdup(json["ssid"]);

src/main.cpp

@@ -1,6 +1,7 @@
-#include "config.h"
 #include "wlan.h"
 #include <Arduino.h>
+#include <ESP8266WiFi.h>
+#include <PubSubClient.h>
 #include <SensirionI2cScd4x.h>
 #include <Wire.h>
 

src/wlan.cpp

@@ -1,5 +1,5 @@
 #include "wlan.h"
-#include <ArduinoJson.h>
+#include <ESP8266WiFi.h>
 
 void initial_connection(const char *ssid, const char *psk,
                         const char *hostname) {