DSK, .xinitrc: Move to .local/share

.gitmodules

@@ -37,3 +37,6 @@
 [submodule ".vim/bundle/vim-css-color"]
 	path = .vim/bundle/vim-css-color
 	url = https://github.com/ap/vim-css-color
+[submodule ".local/share/dsk"]
+	path = .local/share/dsk
+	url = git@gitlab.com:rehashedsalt/dsk

.xinitrc

@@ -19,6 +19,8 @@ die() {
 if [ -x "$HOME/.dsk/dsk" ]; then
 	export DSK_HOME="$HOME/.dsk"
 	export STARTUP="$DSK_HOME/dsk"
+elif [ -x "${XDG_CACHE_DIR:-$HOME/.local/share}/dsk/dsk" ]; then
+	export STARTUP="${XDG_CACHE_DIR:-$HOME/.local/share}/dsk/dsk"
 fi
 [ -z "$STARTUP" ] && die "No session target available"