[Spreadsheet] Enable zoom in Spreadsheet (#16130)

* [Spreadsheet] Enable zoom in Spreadsheet

Closes #6094. This commit also fixes page tab order of Spreadsheet
settings in Preferences.

* Spreadsheet: apply clang-format

---------

Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

src/Mod/Spreadsheet/Gui/SpreadsheetView.cpp

@@ -28,7 +28,6 @@
 #include <QPrintPreviewDialog>
 #include <QPrinter>
 #include <QTextDocument>
-#include <cmath>
 #endif
 
 #include <App/DocumentObject.h>
@@ -47,6 +46,7 @@
 #include "LineEdit.h"
 #include "SpreadsheetDelegate.h"
 #include "SpreadsheetView.h"
+#include "ZoomableView.h"
 #include "qtcolorpicker.h"
 #include "ui_Sheet.h"
 
@@ -74,6 +74,8 @@ SheetView::SheetView(Gui::Document* pcDocument, App::DocumentObject* docObj, QWi
     ui->setupUi(w);
     setCentralWidget(w);
 
+    new ZoomableView(ui);
+
     delegate = new SpreadsheetDelegate(sheet);
     ui->cells->setModel(model);
     ui->cells->setItemDelegate(delegate);