Enable easier use of SD card for storage
If a user wants to set Pictures/Videos/Music dir path to SD card, this is currently not easy. One can manually edit paths in
XDG_DOCUMENTS_DIR= XDG_DOWNLOAD_DIR= XDG_MUSIC_DIR= XDG_PICTURES_DIR= XDG_VIDEOS_DIR=
to point to new directories on SD Card, but the problem is that, while the changes are retained after running xdg-user-dirs-update, when rebooting, everything gets reset to "$HOME/...".
We need some easier way to change the directories to SD card which will be retained after restart.