优化更新代码，添加界面功能并整合

WPFluent/Controls/IconElement/SymbolGlyph.cs

@@ -0,0 +1,67 @@
+
+
+
+namespace WPFluent.Controls;
+
+/// <summary>
+/// Set of static methods to operate on <see cref="SymbolRegular"/> and <see cref="SymbolFilled"/>.
+/// </summary>
+public static class SymbolGlyph
+{
+    /// <summary>
+    /// If the filled icon is not found in some places, this one will be displayed.
+    /// </summary>
+    public const SymbolFilled DefaultFilledIcon = SymbolFilled.BorderNone24;
+    /// <summary>
+    /// If the icon is not found in some places, this one will be displayed.
+    /// </summary>
+    public const SymbolRegular DefaultIcon = SymbolRegular.BorderNone24;
+
+    /// <summary>
+    /// Finds icon based on name.
+    /// </summary>
+    /// <param name="name">Name of the icon.</param>
+    public static SymbolRegular Parse(string name)
+    {
+        if(string.IsNullOrEmpty(name))
+        {
+            return DefaultIcon;
+        }
+
+        try
+        {
+            return (SymbolRegular)Enum.Parse(typeof(SymbolRegular), name);
+        } catch(Exception)
+        {
+#if DEBUG
+            throw;
+#else
+            return DefaultIcon;
+#endif
+        }
+    }
+
+    /// <summary>
+    /// Finds icon based on name.
+    /// </summary>
+    /// <param name="name">Name of the icon.</param>
+    public static SymbolFilled ParseFilled(string name)
+    {
+        if(string.IsNullOrEmpty(name))
+        {
+            return DefaultFilledIcon;
+        }
+
+        try
+        {
+            return (SymbolFilled)Enum.Parse(typeof(SymbolFilled), name);
+        } catch(Exception)
+        {
+#if DEBUG
+            throw;
+#else
+            return DefaultFilledIcon;
+#endif
+        }
+    }
+}