chore: add zoxide and sesh, cleanup

Signed-off-by: Ismo Vuorinen <ismo@ivuorinen.net>

config/fish/config.fish

@@ -26,6 +26,9 @@ if status is-interactive
     # type -q fnm; and fnm env --use-on-cd --shell fish | source
     type -q load_nvm; and load_nvm > /dev/stderr
 
+    # Intialize other tools if available
+    type -q zoxide; and zoxide init fish | source
+
     # Start tmux if not already running and not in SSH
     open-tmux # defined in functions/open-tmux.fish
 end