### Godot version

v4.0.3.rc2.official [2ac4e3bb3]

### System information

Windows 10

### Issue description

It seems that joypad button numbers are changed in Godot 4. The Godot 3->4 conversion doesn't change the button numbers.

This Godot 3 Input Map:

![kuva](https://github.com/godotengine/godot/assets/49998025/86a7db2a-b5b5-48a3-84f9-999de1ed584a)

is converted to this:

![kuva](https://github.com/godotengine/godot/assets/49998025/30ef5803-0559-4408-b0ac-e878bf167ff7)

It seems that only buttons 0-3 are same in Godot 3 and 4:

![kuva](https://github.com/godotengine/godot/assets/49998025/37818929-9582-4a11-bdbe-617fd51dd501)


### Steps to reproduce

Convert any Godot 3 project having joypad buttons assigned to inputs.

### Minimal reproduction project

[conv_test.zip](https://github.com/godotengine/godot/files/11525027/conv_test.zip)

if (line.contains("OS.get_screen_count")) {
		line = line.replace("OS.get_screen_count", "DisplayServer.get_screen_count");
	}
	if (line.contains("OS.get_screen_dpi")) {
		line = line.replace("OS.get_screen_dpi", "DisplayServer.screen_get_dpi");
	}
	if (line.contains("OS.get_screen_max_scale")) {
		line = line.replace("OS.get_screen_max_scale", "DisplayServer.screen_get_max_scale");
	}
	if (line.contains("OS.get_screen_position")) {
		line = line.replace("OS.get_screen_position", "DisplayServer.screen_get_position");
	}
	if (line.contains("OS.get_screen_refresh_rate")) {
		line = line.replace("OS.get_screen_refresh_rate", "DisplayServer.screen_get_refresh_rate");
	}
	if (line.contains("OS.get_screen_scale")) {
		line = line.replace("OS.get_screen_scale", "DisplayServer.screen_get_scale");
	}
	if (line.contains("OS.get_screen_size")) {
		line = line.replace("OS.get_screen_size", "DisplayServer.screen_get_size");
	}
	if (line.contains("OS.set_icon")) {
		line = line.replace("OS.set_icon", "DisplayServer.set_icon");
	}
	if (line.contains("OS.set_native_icon")) {
		line = line.replace("OS.set_native_icon", "DisplayServer.set_native_icon");
	}
	// 
	if (line.contains("OS.window_borderless")) {
		line = line.replace("OS.window_borderless", "get_window().borderless");