Add XDG_CONFIG_HOME and FONTCONFIG_FILE to MacOS environment

Fixes WebKit crash when displaying reports.

gnucash/CMakeLists.txt

@@ -176,7 +176,9 @@ IF (WITH_PYTHON)
 ENDIF()
 
 IF (MAC_INTEGRATION)
+  file(APPEND ${ENV_FILE_OUT} "XDG_CONFIG_HOME={HOME}/Library/Application Support/Gnucash/config\n")
   file(APPEND ${ENV_FILE_OUT} "GDK_PIXBUF_MODULE_FILE={SYS_LIB}/gdk-pixbuf-2.0/2.10.0/loaders.cache\n")
+  file(APPEND ${ENV_FILE_OUT} "FONTCONFIG_FILE={GNC_HOME}/etc/fonts/fonts.conf\n")
 ENDIF()
 
 FILE(COPY ${BUILD_ENV_FILE_OUT}