fix(game): resolve flickering issue in game display

snake.cpp

@@ -25,7 +25,7 @@ void setup() {
 }
 
 void draw() {
-    system("cls");
+    SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), {0,0});
     for(int i = 0; i < width + 2; i++) cout << "#";
     cout << "\n";
     for(int i = 0; i < height; i++) {
@@ -128,6 +128,7 @@ void logic() {
 }
 
 int main() {
+    system("cls");
     setup();
     while(!gameOver){
         draw();