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/xdg-desktop-portal-termfilechooser/config

@@ -1,11 +0,0 @@
-[filechooser]
-cmd=yazi-wrapper.sh
-default_dir=$HOME
-; Uncomment to skip creating destination save files with instructions in them
-; create_help_file=0
-; Uncomment and edit the line below to change the terminal emulator command
-env=TERMCMD=kitty -e
-
-; Mode must be one of 'suggested', 'default', or 'last'.
-open_mode=suggested
-save_mode=suggested