Added gauge, fixed shit

src/global_data/global_data.h

@@ -0,0 +1,38 @@
+#include <Arduino.h>
+
+struct SensorData {
+    float bus_voltage;
+    float shunt_voltage;
+    float shunt_current;
+};
+
+struct WaterData{
+  // Water level in cm
+  float level; 
+  // Water volume in liters
+  float liters;
+  // Percentage
+  float percentage;
+};
+
+
+struct NetworkData {
+    String ip_address;
+    bool link;
+    float rssi;
+    String network_name;
+};
+
+struct DeviceTelemetry {
+    float heap_used_percent;
+    int uptime_seconds;
+};
+
+struct ActiveErrors {
+    bool voltage_low;
+    bool voltage_high;
+    bool current_low;
+    bool current_high;
+    bool level_low;
+    bool level_high;
+};