Add terminal multiplexer launcher (#1687)

* Add tmux

* Add mux modal

* Restore the settings config version

* Revert typo

* Use DankModal for InputModal

* Simplify terminal flags

* use showWithOptions for inputModals instead

* Fix translation

* use Quickshell.env("TERMINAL") to choose terminal

* Fix typo

* Hide muxModal after creating new session

* Add mux check, moved exclusion to service, And use ScriptModel

* Revert unrelated change

* Add blank line

quickshell/DMSShell.qml

@@ -7,6 +7,7 @@ import qs.Modals.Clipboard
 import qs.Modals.Greeter
 import qs.Modals.Settings
 import qs.Modals.DankLauncherV2
+import qs.Modals
 import qs.Modules
 import qs.Modules.AppDrawer
 import qs.Modules.DankDash
@@ -619,6 +620,10 @@ Item {
         }
     }
 
+    MuxModal {
+        id: muxModal
+    }
+
     ClipboardHistoryModal {
         id: clipboardHistoryModalPopup