Fix build error

Author: liamcharger

src/displayapp/screens/StopWatch.cpp

@@ -1,7 +1,7 @@
 #include "displayapp/screens/StopWatch.h"
-
 #include "displayapp/screens/Symbols.h"
 #include "displayapp/InfiniTimeTheme.h"
+#include <algorithm>
 
 using namespace Pinetime::Applications::Screens;