Renamed/Fixed CleanUp() in header file

Author: pshobowale

src/displayapp/screens/Adder.cpp

@@ -10,7 +10,7 @@ Adder::Adder(Pinetime::Components::LittleVgl& lvgl, Controllers::FS& fs) : lvgl(
 }
 
 Adder::~Adder() {
-  Cleanup();
+  CleanUp();
 }
 
 void Adder::InitializeGame() {
@@ -46,7 +46,7 @@ void Adder::InitializeGame() {
   vTaskDelay(20);
 }
 
-void Adder::Cleanup() {
+void Adder::CleanUp() {
   delete[] field;
   delete[] tileBuffer;
   if (refreshTask) {

src/displayapp/screens/Adder.h

@@ -77,12 +77,13 @@ namespace Pinetime {
         void InitializeBody();
         void CreateFood();
         void CreateLevel();
-        
+
         void UpdatePosition();
         void FullRedraw();
         void UpdateSingleTile(unsigned int fieldX, unsigned int fieldY, lv_color_t color);
         void UpdateScore(unsigned int score);
         void GameOver();
+        void CleanUp();
 
         MoveConsequence CheckMove() const;