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/spotify-player/app.toml

@@ -1,58 +0,0 @@
-theme = "dracula"
-client_id = "a5e67511fd004d1d96bc0d1cfc8c29fc"
-client_port = 8080
-login_redirect_uri = "http://127.0.0.1:8989/login"
-playback_format = """
-{status} {track} • {artists} {liked}
-{album} • {genres}
-{metadata}"""
-playback_metadata_fields = [
-    "repeat",
-    "shuffle",
-    "volume",
-    "device",
-]
-notify_timeout_in_secs = 0
-tracks_playback_limit = 50
-app_refresh_duration_in_ms = 32
-playback_refresh_duration_in_ms = 0
-page_size_in_rows = 20
-play_icon = "▶"
-pause_icon = "▌▌"
-liked_icon = "♥"
-border_type = "Plain"
-progress_bar_type = "Rectangle"
-progress_bar_position = "Bottom"
-genre_num = 2
-cover_img_length = 9
-cover_img_width = 5
-cover_img_scale = 1.0
-enable_media_control = true
-enable_streaming = "Always"
-enable_notify = true
-enable_cover_image_cache = true
-default_device = "cachyos-player"
-notify_streaming_only = false
-seek_duration_secs = 5
-sort_artist_albums_by_type = false
-
-[notify_format]
-summary = "{track} • {artists}"
-body = "{album}"
-
-[layout]
-playback_window_position = "Top"
-playback_window_height = 6
-
-[layout.library]
-playlist_percent = 40
-album_percent = 40
-
-[device]
-name = "cachyos-player"
-device_type = "speaker"
-volume = 70
-bitrate = 320
-audio_cache = false
-normalization = false
-autoplay = false