Temporarily added MudBlazor.Markdown to the solution

This is necessary due to issue https://github.com/MyNihongo/MudBlazor.Markdown/issues/247

I created a PR as well: https://github.com/MyNihongo/MudBlazor.Markdown/pull/246

MudBlazor.Markdown/Helpers/MudMarkdownStyling.cs

@@ -0,0 +1,24 @@
+namespace MudBlazor;
+
+public sealed class MudMarkdownStyling
+{
+    public TableStyling Table { get; } = new();
+    
+    public sealed class TableStyling
+    {
+        /// <summary>
+        /// If true, striped table rows will be used.
+        /// </summary>
+        public bool IsStriped { get; set; } = true;
+
+        /// <summary>
+        /// If true, table's cells will have left/right borders.
+        /// </summary>
+        public bool IsBordered { get; set; } = true;
+        
+        /// <summary>
+        /// Child content of component.
+        /// </summary>
+        public int Elevation { set; get; } = 1;
+    }
+}