clean up hook invocation

src/main.zig

@@ -11,6 +11,14 @@ pub const nu_options: nu.Options = .{
     },
 };
 
+pub const nu_driver = nu.Window;
+
+pub const nu_modules = .{
+    App,
+    nu.ImGui,
+    nu.Render,
+};
+
 pub fn main() !void {
     var gpa = std.heap.GeneralPurposeAllocator(.{}){};
     defer _ = gpa.detectLeaks();
@@ -37,9 +45,5 @@ pub fn main() !void {
     try App.init(alloc);
     defer App.deinit();
 
-    try nu.run(nu.Window, .{
-        App,
-        nu.ImGui,
-        nu.Render,
-    });
+    try nu.run();
 }