Add DISABLE_NLS option

--- Source/Core/DolphinQt/CMakeLists.txt.orig	2025-09-15 19:46:44 UTC
+++ Source/Core/DolphinQt/CMakeLists.txt
@@ -530,6 +544,9 @@ endif()
   )
 endif()
 
+option(DISABLE_NLS "Disable native language support (NLS)" OFF)
+if(NOT DISABLE_NLS)
+
 # Handle localization
 find_package(Gettext)
 
@@ -581,6 +598,8 @@ endif()
     endif()
   endforeach()
 endif()
+
+endif() # NOT DISABLE_NLS
 
 if(APPLE)
   include(BundleUtilities)
