[QuickAccent] Add description of current selected letter (#20587)

* Adding unicode names and adjusting UI (WIP)

* Added changing letter names

* Add optioins to hide description (WIP)

* WIP

* Change to binding property

* Adress PR comments

* Set TextBlock in border

* * Added to settings
* Fixed string showing/not showing one time after switching character
* Removed unneccessairy command in SettingsService.cs
* Moved showdescription enum to settings.ui

* Adding Fluent design :)

* Fix merge errors

* Center list

* Fixed code not working. Accepted some code style changes.

* Merge main in branch #2

* [Quick Accent] support unicode description for UTF-16 surrogate pairs

* [Quick Accent] fix check-spelling-bot errors

* [check-spelling] accept LANGID as correct word

* [Quick Accent] fix delay when calling ShowToolbar for the first time

* [Quick Accent] use toggle switch to turn off/on Unicode description

* [Quick Accent] fix after merge

* [Quick Accent] add UnicodeInformation.dll to installer

Co-authored-by: Niels Laute <niels.laute@live.nl>

src/modules/poweraccent/PowerAccent.Core/Services/SettingsService.cs

@@ -10,6 +10,7 @@ using Microsoft.PowerToys.Settings.UI.Library.Utilities;
 using PowerToys.PowerAccentKeyboardService;
 using System.IO.Abstractions;
 using System.Text.Json;
+using static Vanara.PInvoke.LANGID;
 
 public class SettingsService
 {
@@ -91,6 +92,8 @@ public class SettingsService
                                 Position = Position.Center;
                                 break;
                         }
+
+                        ShowUnicodeDescription = settings.Properties.ShowUnicodeDescription;
                     }
                 }
                 catch (Exception ex)
@@ -175,6 +178,21 @@ public class SettingsService
             _selectedLang = value;
         }
     }
+
+    private bool _showUnicodeDescription;
+
+    public bool ShowUnicodeDescription
+    {
+        get
+        {
+            return _showUnicodeDescription;
+        }
+
+        set
+        {
+            _showUnicodeDescription = value;
+        }
+    }
 }
 
 public enum Position