Spreadsheet: Create rename action using the GUI::CommonActions helper

Besides from reusing more parts from the code, this allows us to call
the action using the F2 key. That is also the reason why we have
to reassign `m_tab_context_menu_sheet_view` on tab change.

Userland/Applications/Spreadsheet/SpreadsheetWidget.cpp

@@ -92,7 +92,7 @@ SpreadsheetWidget::SpreadsheetWidget(GUI::Window& parent_window, NonnullRefPtrVe
         m_workbook->add_sheet("Sheet 1");
 
     m_tab_context_menu = GUI::Menu::construct();
-    m_rename_action = GUI::Action::create("Rename...", Gfx::Bitmap::try_load_from_file("/res/icons/16x16/rename.png").release_value_but_fixme_should_propagate_errors(), [this](auto&) {
+    m_rename_action = GUI::CommonActions::make_rename_action([this](auto&) {
         VERIFY(m_tab_context_menu_sheet_view);
 
         auto* sheet_ptr = m_tab_context_menu_sheet_view->sheet_if_available();
@@ -246,6 +246,11 @@ SpreadsheetWidget::SpreadsheetWidget(GUI::Window& parent_window, NonnullRefPtrVe
     m_cut_action->set_enabled(false);
     m_copy_action->set_enabled(false);
 
+    m_tab_widget->on_change = [this](auto& selected_widget) {
+        // for keyboard shortcuts and command palette
+        m_tab_context_menu_sheet_view = static_cast<SpreadsheetView&>(selected_widget);
+    };
+
     m_tab_widget->on_context_menu_request = [&](auto& widget, auto& event) {
         m_tab_context_menu_sheet_view = static_cast<SpreadsheetView&>(widget);
         m_tab_context_menu->popup(event.screen_position());