replace Bazored.Toast with custom Toast component

src/Web/Shared/Components/Toast/ToastInstance.cs

@@ -0,0 +1,52 @@
+// <copyright file="ToastInstance.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.Web.Shared.Components.Toast;
+
+using System;
+
+/// <summary>
+/// Represents a single toast message shown in the <see cref="ToastContainer"/>.
+/// </summary>
+public sealed class ToastInstance
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ToastInstance"/> class.
+    /// </summary>
+    /// <param name="level">The level.</param>
+    /// <param name="message">The message.</param>
+    /// <param name="heading">The optional heading.</param>
+    internal ToastInstance(ToastLevel level, string message, string? heading)
+    {
+        this.Key = Guid.NewGuid();
+        this.Level = level;
+        this.Message = message;
+        this.Heading = heading;
+    }
+
+    /// <summary>
+    /// Gets a stable key identifying this toast, used as a render key.
+    /// </summary>
+    public Guid Key { get; }
+
+    /// <summary>
+    /// Gets the level.
+    /// </summary>
+    public ToastLevel Level { get; }
+
+    /// <summary>
+    /// Gets the message.
+    /// </summary>
+    public string Message { get; }
+
+    /// <summary>
+    /// Gets the optional heading.
+    /// </summary>
+    public string? Heading { get; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether the toast is performing its closing animation.
+    /// </summary>
+    internal bool IsClosing { get; set; }
+}