Sync `display/window/size/initial_position_type` and `Window::WINDOW_INITIAL_POSITION_` enum.

(cherry picked from commit d990f594a05da37252b737fa21deab9f460201bb)

core/config/project_settings.cpp

@@ -1497,9 +1497,10 @@ ProjectSettings::ProjectSettings() {
 
 	GLOBAL_DEF_BASIC(PropertyInfo(Variant::INT, "display/window/size/mode", PROPERTY_HINT_ENUM, "Windowed,Minimized,Maximized,Fullscreen,Exclusive Fullscreen"), 0);
 
-	// Keep the enum values in sync with the `DisplayServer::SCREEN_` enum.
-	GLOBAL_DEF_BASIC(PropertyInfo(Variant::INT, "display/window/size/initial_position_type", PROPERTY_HINT_ENUM, "Absolute,Center of Primary Screen,Center of Other Screen,Center of Screen With Mouse Pointer,Center of Screen With Keyboard Focus"), 1);
+	// Keep the enum values in sync with the `Window::WINDOW_INITIAL_POSITION_` enum.
+	GLOBAL_DEF_BASIC(PropertyInfo(Variant::INT, "display/window/size/initial_position_type", PROPERTY_HINT_ENUM, "Absolute:0,Center of Primary Screen:1,Center of Other Screen:3,Center of Screen With Mouse Pointer:4,Center of Screen With Keyboard Focus:5"), 1);
 	GLOBAL_DEF_BASIC(PropertyInfo(Variant::VECTOR2I, "display/window/size/initial_position"), Vector2i());
+	// Keep the enum values in sync with the `DisplayServer::SCREEN_` enum.
 	GLOBAL_DEF_BASIC(PropertyInfo(Variant::INT, "display/window/size/initial_screen", PROPERTY_HINT_RANGE, "0,64,1,or_greater"), 0);
 
 	GLOBAL_DEF_BASIC("display/window/size/resizable", true);

main/main.cpp

@@ -2479,27 +2479,27 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 		}
 		window_mode = (DisplayServer::WindowMode)(GLOBAL_GET("display/window/size/mode").operator int());
 		int initial_position_type = GLOBAL_GET("display/window/size/initial_position_type").operator int();
-		if (initial_position_type == 0) { // Absolute.
+		if (initial_position_type == Window::WINDOW_INITIAL_POSITION_ABSOLUTE) { // Absolute.
 			if (!init_use_custom_pos) {
 				init_custom_pos = GLOBAL_GET("display/window/size/initial_position").operator Vector2i();
 				init_use_custom_pos = true;
 			}
-		} else if (initial_position_type == 1) { // Center of Primary Screen.
+		} else if (initial_position_type == Window::WINDOW_INITIAL_POSITION_CENTER_PRIMARY_SCREEN || initial_position_type == Window::WINDOW_INITIAL_POSITION_CENTER_MAIN_WINDOW_SCREEN) { // Center of Primary Screen.
 			if (!init_use_custom_screen) {
 				init_screen = DisplayServer::SCREEN_PRIMARY;
 				init_use_custom_screen = true;
 			}
-		} else if (initial_position_type == 2) { // Center of Other Screen.
+		} else if (initial_position_type == Window::WINDOW_INITIAL_POSITION_CENTER_OTHER_SCREEN) { // Center of Other Screen.
 			if (!init_use_custom_screen) {
 				init_screen = GLOBAL_GET("display/window/size/initial_screen").operator int();
 				init_use_custom_screen = true;
 			}
-		} else if (initial_position_type == 3) { // Center of Screen With Mouse Pointer.
+		} else if (initial_position_type == Window::WINDOW_INITIAL_POSITION_CENTER_SCREEN_WITH_MOUSE_FOCUS) { // Center of Screen With Mouse Pointer.
 			if (!init_use_custom_screen) {
 				init_screen = DisplayServer::SCREEN_WITH_MOUSE_FOCUS;
 				init_use_custom_screen = true;
 			}
-		} else if (initial_position_type == 4) { // Center of Screen With Keyboard Focus.
+		} else if (initial_position_type == Window::WINDOW_INITIAL_POSITION_CENTER_SCREEN_WITH_KEYBOARD_FOCUS) { // Center of Screen With Keyboard Focus.
 			if (!init_use_custom_screen) {
 				init_screen = DisplayServer::SCREEN_WITH_KEYBOARD_FOCUS;
 				init_use_custom_screen = true;

scene/main/window.h

@@ -103,7 +103,7 @@ public:
 		DEFAULT_WINDOW_SIZE = 100,
 	};
 
-	// Keep synced with enum hint for `initial_position` property.
+	// Keep synced with enum hint for `initial_position` property and `display/window/size/initial_position_type` project setting.
 	enum WindowInitialPosition {
 		WINDOW_INITIAL_POSITION_ABSOLUTE,
 		WINDOW_INITIAL_POSITION_CENTER_PRIMARY_SCREEN,