Add a grammar and spell checker assistant (#72)

app/MindWork AI Studio/Tools/ButtonData.cs

@@ -0,0 +1,3 @@
+namespace AIStudio.Tools;
+
+public readonly record struct ButtonData(string Text, string Icon, Color Color, string Tooltip, Func<Task> AsyncAction);

app/MindWork AI Studio/Tools/CommonLanguageExtensions.cs

@@ -42,4 +42,12 @@ public static class CommonLanguageExtensions
         
         return language.Name();
     }
+    
+    public static string NameSelectingOptional(this CommonLanguages language)
+    {
+        if(language is CommonLanguages.AS_IS)
+            return "Do not specify the language";
+        
+        return language.Name();
+    }
 }

app/MindWork AI Studio/Tools/JsRuntimeExtensions.cs

@@ -0,0 +1,11 @@
+using AIStudio.Components;
+
+namespace AIStudio.Tools;
+
+public static class JsRuntimeExtensions
+{
+    public static async Task GenerateAndShowDiff(this IJSRuntime jsRuntime, string text1, string text2)
+    {
+        await jsRuntime.InvokeVoidAsync("generateDiff", text1, text2, AssistantBase.ASSISTANT_RESULT_DIV_ID, AssistantBase.AFTER_RESULT_DIV_ID);
+    }
+}