Ava UI: Better Controller Applet (#5756)

* Start work on better Controller Applet

* Don’t require title

* UI improvements

* Border around TBD area

* Formatting

* Better SVGs

* Add missing margin

* Use Locale

* Rename function

* Make buttons ourselves

* Make the buttons do shit

* Formatting

* Adjust SVGs

* Fix Open Settings Window

* Make field readonly

* Final tweaks

* Update src/Ryujinx.Ava/UI/Applet/AvaHostUiHandler.cs

Co-authored-by: Ac_K <Acoustik666@gmail.com>

* Update src/Ryujinx.Ava/UI/Applet/ControllerAppletDialog.axaml.cs

Co-authored-by: Ac_K <Acoustik666@gmail.com>

* Apply suggestions from code review

Co-authored-by: Ac_K <Acoustik666@gmail.com>

* Update src/Ryujinx.Ava/UI/Applet/ControllerAppletDialog.axaml.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Move icons to Ava project

* Reorder arguments

* Try to focus Settings Window

* Fix icons

Project shenangians

* Add ContentDialogHelper.ShowWindowAsync method

* Fix closed SettingsWindow reference in MainWindow

* Fix SettingsWindow dialog

* Suggestion

---------

Co-authored-by: Ac_K <Acoustik666@gmail.com>
Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

src/Ryujinx.Ava/UI/Views/Main/MainMenuBarView.axaml.cs

@@ -122,6 +122,8 @@ namespace Ryujinx.Ava.UI.Views.Main
 
             await Window.SettingsWindow.ShowDialog(Window);
 
+            Window.SettingsWindow = null;
+
             ViewModel.LoadConfigurableHotKeys();
         }