fix(syncthing): Persist Syncthing state

Previously, the device ID would be lost and consequently regenerated on boot.
This means that previous connections will recognise it as a new, different
device.

README.org

@@ -179,6 +179,8 @@ sydnix-cli is a command-line utility written in Clojure wrapping various sydnix-
 
 ** Emacs from scratch
 
+*** TODO [#A] [[id:6141dc5c-2232-4bc0-9464-410c21135c86][Strategies]]
+
 *** TODO Completions w/ [[https://github.com/minad/corfu][Corfu]]
 
 *** TODO Overlay org-mode links with the domain name
@@ -231,10 +233,6 @@ If a comment immediately proceeds a sexp, open the new sexp /before/ the comment
 
 *** DONE Evil operators like ~=~ should not move point
 
-*** TODO Fix ~syd-forward-up-sexp~
-
-*** TODO Fix defun text object
-
 *** TODO ESC should immediately close minibuffer, even whilst in insert state
 
 *** DONE Daemon