dock: add trash bin button (#2277)

* dock: add trash bin button

- icon reflects content- filled/empty
- multiple file manager support with nautilus as default, builtin as
fallback
- settingsspec at dock tab
- context menu

* fix: remove support for builtin filebrowser

needs specific adaptors at FB adhering the trash freedesktop spec

* fix: suppress auto-hide dock with trash context menu open

* feat: allow for custom file manager command

* feat: switch runner to proc.runcommand with toasts on command failures

quickshell/Common/SettingsData.qml

@@ -545,6 +545,9 @@ Singleton {
     property int dockMaxVisibleApps: 0
     property int dockMaxVisibleRunningApps: 0
     property bool dockShowOverflowBadge: true
+    property bool dockShowTrash: false
+    property string dockTrashFileManager: "nautilus"
+    property string dockTrashCustomCommand: ""
 
     property bool notificationOverlayEnabled: false
     property bool notificationPopupShadowEnabled: true

quickshell/Common/settings/SettingsSpec.js

@@ -350,6 +350,9 @@ var SPEC = {
     dockMaxVisibleApps: { def: 0 },
     dockMaxVisibleRunningApps: { def: 0 },
     dockShowOverflowBadge: { def: true },
+    dockShowTrash: { def: false },
+    dockTrashFileManager: { def: "nautilus" },
+    dockTrashCustomCommand: { def: "" },
 
     notificationOverlayEnabled: { def: false },
     notificationPopupShadowEnabled: { def: true },