[KBM]Disable utility by default on new install (#29278)

src/modules/keyboardmanager/dll/dllmain.cpp

@@ -168,6 +168,13 @@ public:
     {
         return m_enabled;
     }
+
+    // Returns whether the PowerToys should be enabled by default
+    virtual bool is_enabled_by_default() const override
+    {
+        return false;
+    }
+
 };
 
 extern "C" __declspec(dllexport) PowertoyModuleIface* __cdecl powertoy_create()