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/fish/functions/awww_set_wallpaper.fish

@@ -1,13 +0,0 @@
-function awww_set_wallpaper
-    set wallpaper $argv[1]
-
-    # Start swww daemon if not running
-    if not pgrep awww-daemon > /dev/null
-        awww-daemon &
-        sleep 1
-    end
-
-    # Set wallpaper with animation
-    awww img "$wallpaper" \
-        --transition-type wipe
-    end