Only do add_resources for web client on macOS.

src/CMakeLists.txt

@@ -108,10 +108,9 @@ endif()
 set(RESOURCE_ROOT .)
 if(APPLE)
   set(RESOURCE_ROOT Resources)
+  add_resources(TARGET ${MAIN_TARGET} SOURCES ${CMAKE_CURRENT_BINARY_DIR}/../dist/ DEST ${RESOURCE_ROOT}/web-client/desktop)
 endif()
 
-add_resources(TARGET ${MAIN_TARGET} SOURCES ${CMAKE_CURRENT_BINARY_DIR}/../dist/ DEST ${RESOURCE_ROOT}/web-client/desktop)
-
 if(NOT APPLE)
   set(rsrc_locations
     ${QTROOT}/resources