zsh:opts: Revert disabling CDABLE_VARS

This reverts commit a205a7c5ce ("zsh:opts: Disable CDABLE_VARS").

The main reason why the option annoyed me was primarily because I had
stupid named dirs to begin with. Remove children of HOME, since I get
there fast anyways.

.config/zsh/zshrc.d/10-options.zsh

@@ -8,6 +8,12 @@
 # NOTE: Only copies first line. If there are multiple lines (as with
 # SHARE_HISTORY) the other lines have to be copied manually.
 
+# Changing Directories #########################################################
+	# Make cd push the old directory onto the directory stack.
+	setopt AUTO_PUSHD
+
+	# If the argument to a cd command (or an implied cd with the AUTO_CD option
+	# set) is not a directory, and does not begin with a slash, try to expand
 	# the expression as if it were preceded by a `~' (see the section `Filename
 	# Expansion').
 	setopt CDABLE_VARS