Updating the AZ_DECLARE_MODULE_CLASS call in the Project's template code module to use the Gem_ prefix instead of Project_ since that is what the StaticModules.inl file geneates in it CreateStaticModules function when generating a monolithic solution

Templates/DefaultProject/Template/Code/Source/${Name}Module.cpp

@@ -47,4 +47,4 @@ namespace ${Name}
     };
 }// namespace ${Name}
 
-AZ_DECLARE_MODULE_CLASS(Project_${Name}, ${Name}::${Name}Module)
+AZ_DECLARE_MODULE_CLASS(Gem_${Name}, ${Name}::${Name}Module)