Renamed displayapp/Screens to displayapp/screens

src/displayapp/screens/BleIcon.cpp

@@ -0,0 +1,8 @@
+#include "BleIcon.h"
+#include "Symbols.h"
+using namespace Pinetime::Applications::Screens;
+
+const char* BleIcon::GetIcon(bool isConnected) {
+  if(isConnected) return Symbols::bluetooth;
+  else return "";
+}