have disks have its own struct

include/sys.hpp

@@ -21,6 +21,11 @@ struct Memory {
     uint64_t total = 0;
 };
 
+struct Disk {
+    std::string mountpoint;
+    Memory usage;
+};
+
 struct TimeDate {
     std::string time;
     std::string date;
@@ -32,7 +37,7 @@ struct Network {
 };
 
 void getTimeDate(TimeDate* td);
-void getDisk(Memory* disk, std::string mount);
+void getDisk(Disk* disk);
 void getRam(Memory* mem);
 void getNetwork(Network* net, std::string device);
 void detectHwmon(sysSensors* s, std::string platform);