Remove redundant Hyprland launch wrapper

With initial workspace tracking disabled, windows naturally open on the active workspace. Remove the explicit Hyprland workspace dispatch and let shell actions, shell restarts, and presentation terminals launch directly.

shell/Commons/Util.qml

@@ -7,8 +7,6 @@ import QtQuick
 QtObject {
   id: root
 
-  readonly property string omarchyPath: Quickshell.env("OMARCHY_PATH")
-
   function clamp(value, min, max) {
     var n = Number(value)
     if (!isFinite(n)) return min
@@ -41,8 +39,8 @@ QtObject {
     return "'" + String(value || "").replace(/'/g, "'\\''") + "'"
   }
 
-  function hyprExecCommand(command) {
-    return [omarchyPath + "/bin/omarchy-hyprland-launch", command]
+  function execDetached(command) {
+    Quickshell.execDetached(["bash", "-lc", command])
   }
 
   function isPlainObject(value) {