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/youtube-tui/cmdefine.yml

@@ -1,25 +0,0 @@
-back: mpv playlist-previous ;; echo mpv Skipped
-h: help
-video: loadpage video
-q: quit
-watchhistory: loadpage watchhistory
-resume: mpv sprop pause no ;; echo mpv Player resumed
-search: loadpage search
-feed: loadpage feed
-x: quit
-v: version
-exit: quit
-channel: loadpage channel
-print: echo
-playlist: loadpage playlist
-popular: loadpage popular
-next: mpv playlist-next ;; echo mpv Skipped
-bookmarks: loadpage bookmarks
-trending: loadpage trending
-tpause: mpv tprop pause ;; echo success Toggled player pause
-cp: copy
-pause: mpv sprop pause yes ;; echo mpv Player paused
-rc: reload configs
-library: loadpage library
-r: reload
-sub: sync