code sanitization (decentralized several vars, 2)

src/configmanager.cpp

@@ -17,6 +17,8 @@ static const char TAG[] = __FILE__;
 
 Preferences nvram;
 
+configData_t cfg; // struct holds current device configuration
+
 static const uint8_t cfgMagicBytes[] = {0x21, 0x76, 0x87, 0x32, 0xf4};
 static const size_t cfgLen = sizeof(cfg), cfgLen2 = sizeof(cfgMagicBytes);
 static uint8_t buffer[cfgLen + cfgLen2];

src/main.cpp

@@ -89,8 +89,6 @@ triggers pps 1 sec impulse
 // local Tag for logging
 static const char TAG[] = __FILE__;
 
-configData_t cfg; // struct holds current device configuration
-uint8_t batt_level = 0;                 // display value
 char clientId[20] = {0};                // unique ClientID
 
 void setup() {

src/power.cpp

@@ -5,6 +5,8 @@
 // Local logging tag
 static const char TAG[] = __FILE__;
 
+uint8_t batt_level = 0; // display value
+
 #ifdef BAT_MEASURE_ADC
 esp_adc_cal_characteristics_t *adc_characs =
     (esp_adc_cal_characteristics_t *)calloc(