Ava UI: Input Menu Refactor (#5826)

* Refactor

* Apply suggestions from code review

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

* Update src/Ryujinx/UI/Views/Settings/SettingsHotkeysView.axaml.cs

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

* Update src/Ryujinx.Input/ButtonValueType.cs

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

* Add empty line

* Requested renames

* Update src/Ryujinx/UI/Views/Settings/SettingsHotkeysView.axaml.cs

Co-authored-by: gdkchan <gab.dark.100@gmail.com>

* Make parent models private readonly

* Fix ControllerInputView

* Make line shorter

* Mac keys in locale

* Double line break

* Fix build

* Get rid of _isValid

* Fix potential race condition

* Rename HasAnyButtonPressed to IsAnyButtonPressed

* Use switches

* Simplify enumeration

---------

Co-authored-by: Ac_K <Acoustik666@gmail.com>
Co-authored-by: gdkchan <gab.dark.100@gmail.com>
Co-authored-by: TSR Berry <20988865+TSRBerry@users.noreply.github.com>

src/Ryujinx/UI/Views/Input/MotionInputView.axaml

@@ -6,7 +6,7 @@
     xmlns:controls="clr-namespace:Ryujinx.Ava.UI.Controls"
     xmlns:ui="clr-namespace:FluentAvalonia.UI.Controls;assembly=FluentAvalonia"
     xmlns:locale="clr-namespace:Ryujinx.Ava.Common.Locale"
-    xmlns:viewModels="clr-namespace:Ryujinx.Ava.UI.ViewModels"
+    xmlns:viewModels="clr-namespace:Ryujinx.Ava.UI.ViewModels.Input"
     mc:Ignorable="d"
     x:Class="Ryujinx.Ava.UI.Views.Input.MotionInputView"
     x:DataType="viewModels:MotionInputViewModel"