Migrate from stow to dm theme manager

Move all config files from .config/ into themes/dracula/.config/ so the
dm tool can manage them as file-level symlinks. Removes .bak file.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.config/waybar/waybar.sh

@@ -1,10 +0,0 @@
-#!/usr/bin/env sh
-
-# Terminate already running bar instances
-killall -q waybar
-
-# Wait until the processes have been shut down
-while pgrep -x waybar >/dev/null; do sleep 1; done
-
-# Launch main
-waybar &