Zsh: Remove o-m-z variable, fix preexec terminal title

Can't get number of jobs from subshell, so we put them in a variable.

.config/zsh/.zshrc

@@ -126,7 +126,6 @@ EOF
 
 case ${TERM} in
     (xterm* | tmux* | rxvt* | screen* | alacritty)
-        DISABLE_AUTO_TITLE="true"
         # Write some info to terminal title.
         # This is seen when the shell prompts for input.
         function _my_title_precmd() {
@@ -136,7 +135,8 @@ case ${TERM} in
         # Write command and args to terminal title.
         # This is seen while the shell waits for a command to complete.
         function _my_title_preexec() {
-            printf "\e]0;%s: %s; %s\a" "${HOST}" "${1}" "$(print -Pn %~)"
+            print -Pnv jobs_dir "%(1j,%j job%(2j|s|); ,)%~"
+            printf "\e]0;%s: %s; %s\a" "${HOST}" "${1}" "${jobs_dir}"
         }
         add-zsh-hook preexec _my_title_preexec