feat: added Files app USB medium detection

kernel/src/Api/Syscall.hpp

@@ -225,6 +225,7 @@ namespace Montauk {
 
     /* Filesystem.hpp */
     static constexpr uint64_t SYS_DRIVELABEL          = 124;
+    static constexpr uint64_t SYS_DRIVEKIND           = 127;
 
     /* Net.hpp */
     static constexpr uint64_t SYS_NETSTATUS           = 125;