chore: add dot_config session for tmuxifier

Author: miszo

home/exact_dot_tmuxifier/layouts/dot_config.session.sh.tmpl

@@ -0,0 +1,15 @@
+# vim: syntax=sh
+# Set a custom session root path. Default is `$HOME`.
+# Must be called before `initialize_session`.
+session_root {{ .chezmoi.homeDir | quote }}
+
+# Create session with specified name if it does not already exist. If no
+# argument is given, session name will be based on layout file name.
+if initialize_session "dot_config"; then
+  new_window "editor"
+  select_window 1
+  run_cmd "vim ."
+fi
+
+# Finalize session creation and switch/attach to it.
+finalize_and_go_to_session