Added "DeveloperSettings" to public dependencies to fix build errors

[PYSX-Physix]

In the ModularGameplayUI.build.cs file I added "DeveloperSettings" to the PublicDependencyModuleNames to fix the issue with this plugin giving errors upon building the plugin.

PublicDependencyModuleNames.AddRange(
			new string[]
			{
				"CommonLoadingScreen",
				"Core",
				"DeveloperSettings", <---- NEW
				"EnhancedInput",
				"GameplayTags",
				"ModularGameplayData",
				"ModularGameplayExperiences",
				"UIExtension"
			}
			);