repo: Add XDG user dirs config + Update zsh hashes

Create named directories to every visible folder in $HOME for greater
portability.
Set the CDABLE_VARS zsh option.

.config/user-dirs.dirs

@@ -0,0 +1,15 @@
+# This file is read by xdg-user-dirs-update
+# If you want to change or add directories, just edit the line you're
+# interested in. All local changes will be retained on the next run.
+# Format is XDG_xxx_DIR="$HOME/yyy", where yyy is a shell-escaped
+# homedir-relative path, or XDG_xxx_DIR="/yyy", where /yyy is an
+# absolute path. No other format is supported.
+
+XDG_DESKTOP_DIR="$HOME/misc"
+XDG_DOWNLOAD_DIR="$HOME/downs"
+XDG_TEMPLATES_DIR="$HOME/misc"
+XDG_PUBLICSHARE_DIR="$HOME/misc"
+XDG_DOCUMENTS_DIR="$HOME/docs"
+XDG_MUSIC_DIR="$HOME/music"
+XDG_PICTURES_DIR="$HOME/pics"
+XDG_VIDEOS_DIR="$HOME/vids"