repo: Remove traces of tmux configuration

While I never disliked tmux I have not been using it for absolute ages
now, ever since starting to multiplex with wezterm. Wezterm can (at
least with my current setup) *not* replace all tmux functionality -
especially running multiple sessions in a detachable way on a remote
server - but I have never needed those in a long time now.

Detachable sessions I can create instead with `abduco`.

README.md

@@ -53,13 +53,12 @@ Enjoy!
     * [`waybar`](https://github.com/Alexays/Waybar) - Easily customizable statusbar for wayland
     * [`bemenu`](https://github.com/Cloudef/bemenu) - Extended dmenu replacement for wayland, X11 and ncurses
     * [`fontconfig`] - System-wide font replacements and styling settings
-* [`wezterm`](https://wezfurlong.org/wezterm/) - Terminal emulator (fast, understandable and lua configurable)
-* [`tmux`](https://github.com/tmux/tmux/) - terminal multiplexer (slowly migrating away in favor of wezterm)
+* [`wezterm`](https://wezfurlong.org/wezterm/) - Terminal emulator and multiplexer (fast, understandable and lua configurable)
 * [`nvim`](https://neovim.io/) - Neovim configuration
 * [`vifm`](https://github.com/vifm/vifm) - vim-like file-manager
 * [`qutebrowser`](https://github.com/qutebrowser/qutebrowser) - vim-key enabled web browser
 * [`pass`](pass/README.md) - Password management suite
-* [`bibtex`] - LateX/BibteX/pandoc plaintext writing & reference suite
+* [`bibtex`] - LateX/BibteX/pandoc plaintext writing & reference suite (slowly migrating toward [typst](https://typst.app))
 * [`git`](git/README.md) - distributed version control system.
 * [`office`](office/README.md) - office/productivity software for writing e-mail and setting appointments