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/Common/SettingsData.qml

@@ -442,6 +442,11 @@ Singleton {
     property bool syncModeWithPortal: true
     property bool terminalsAlwaysDark: false
 
+    property string muxType: "tmux"
+    property bool muxUseCustomCommand: false
+    property string muxCustomCommand: ""
+    property string muxSessionFilter: ""
+
     property bool runDmsMatugenTemplates: true
     property bool matugenTemplateGtk: true
     property bool matugenTemplateNiri: true