Updates termplex: 5585ddf Feat: support for starting detached tmux sessions

diff --git a/termplex b/termplex
index 6ced9f8d7442563a48cb06a96e374030f363a328..5585ddfc0b7098900a916cf581736f3601d4c7db 160000 (submodule)
--- a/termplex
+++ b/termplex
@@ -1 +1 @@
-Subproject commit 6ced9f8d7442563a48cb06a96e374030f363a328
+Subproject commit 5585ddfc0b7098900a916cf581736f3601d4c7db