ADS: Fix workspace dialog on removal

- Fix an issue where the list of workspaces is not correctly updated
  after removal of a workspace in the dialog
- Fix initial sorting of the workspace model

Change-Id: I0c16aabc1fdcc2690fcb83e40b0d5d16cb6c72ba
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/libs/advanceddockingsystem/dockmanager.cpp

@@ -774,15 +774,16 @@ namespace ADS
         if (!d->m_workspaces.contains(workspace))
             return false;
 
-        d->m_workspaces.removeOne(workspace);
-
-        emit workspacesRemoved();
-        emit workspaceListChanged();
-
         // Remove corresponding workspace file
         QFile fi(workspaceNameToFileName(workspace).toString());
-        if (fi.exists())
+        if (fi.exists()) {
-            return fi.remove();
+            if (fi.remove()) {
+                d->m_workspaces.removeOne(workspace);
+                emit workspacesRemoved();
+                emit workspaceListChanged();
+                return true;
+            }
+        }
 
         return false;
     }

src/libs/advanceddockingsystem/workspacemodel.cpp

@@ -53,6 +53,7 @@ WorkspaceModel::WorkspaceModel(DockManager *manager, QObject *parent)
     , m_currentSortColumn(0)
 {
     m_sortedWorkspaces = m_manager->workspaces();
+    sort(m_currentSortColumn, m_currentSortOrder);
     connect(m_manager, &DockManager::workspaceLoaded, this, &WorkspaceModel::resetWorkspaces);
 }