Support table cell background in DOCX renderer; add more samples

Author: manfromarce

src/WIP/DocSharp.Renderer/DocxRenderer.cs

@@ -31,7 +31,7 @@ static DocxRenderer()
     /// </summary>
     public QuestPDF.Infrastructure.DocumentMetadata? PdfMetadata { get; set; }
 
-    private QuestPdfPageSet? currentPageSet; // Current section
+    // private QuestPdfPageSet? currentPageSet; // Current section
     private Stack<QuestPdfContainer> currentContainer = new(); // Container can be the main document body, header, footer, table cell, ...
     private Stack<IQuestPdfRunContainer> currentRunContainer = new(); // Spans can only be added to a paragraph or hyperlink
     private Stack<QuestPdfParagraph> currentParagraph = new(); // Hyperlinks can only be added to a paragraph

src/WIP/DocSharp.Renderer/Model/QuestPdfModel.cs

@@ -342,7 +342,8 @@ internal void AddTableToColumn(IContainer item, QuestPdfTable table)
                 uint columnNumber = 1;
                 foreach (var tc in row.Cells)
                 {
-                    var cell = t.Cell().Row(rowNumber).Column(columnNumber).RowSpan(tc.RowSpan).ColumnSpan(tc.ColumnSpan);
+                    var cell = t.Cell().Row(rowNumber).Column(columnNumber).RowSpan(tc.RowSpan).ColumnSpan(tc.ColumnSpan)
+                                .Background(QuestPDF.Infrastructure.Color.FromHex(tc.BackgroundColor ?? Colors.Transparent));
 
                     cell.Column(column =>
                     {