feat(macos): build a signed .app bundle in a .dmg (#4759)

cmake/compile_definitions/common.cmake

@@ -142,6 +142,8 @@ include_directories(
         "${CMAKE_SOURCE_DIR}/third-party/moonlight-common-c/enet/include"
         "${CMAKE_SOURCE_DIR}/third-party/nanors"
         "${CMAKE_SOURCE_DIR}/third-party/nanors/deps/obl"
+        ${OPENSSL_INCLUDE_DIR}
+        ${Opus_INCLUDE_DIR}
         ${FFMPEG_INCLUDE_DIRS}
         ${Boost_INCLUDE_DIRS}  # has to be the last, or we get runtime error on macOS ffmpeg encoder
 )
@@ -152,7 +154,7 @@ list(APPEND SUNSHINE_EXTERNAL_LIBRARIES
         enet
         libdisplaydevice::display_device
         nlohmann_json::nlohmann_json
-        opus
+        ${Opus_LIBRARY}
         ${FFMPEG_LIBRARIES}
         ${Boost_LIBRARIES}
         ${OPENSSL_LIBRARIES}