[Settings] Optimizing and cleaning up code (#44721)

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fix/what does it change/how was it tested (even manually, if necessary)?
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## Summary of the Pull Request

- Removing dead experiments code
- Refactoring and simplifying OOBE/SCOOBE windowing code
- Removing dead assets
- Optimizing CmdPal assets to lower res shaving off a few MBs
- Scrolling works better on the What's new page
- Should be merged after: #44638

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## PR Checklist

- [X] Closes: #44958
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issues) -->
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

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## Detailed Description of the Pull Request / Additional comments

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---------

Co-authored-by: Gordon Lam (SH) <yeelam@microsoft.com>

src/settings-ui/Settings.UI/OOBE/ViewModel/OobeShellViewModel.cs

@@ -2,12 +2,73 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+using Microsoft.PowerToys.Settings.UI.OOBE.Enums;
+
 namespace Microsoft.PowerToys.Settings.UI.OOBE.ViewModel
 {
     public class OobeShellViewModel
     {
+        public ObservableCollection<OobePowerToysModule> Modules { get; } = new();
+
         public OobeShellViewModel()
         {
+            Modules = new ObservableCollection<OobePowerToysModule>(
+            new (PowerToysModules Module, bool IsNew)[]
+            {
+            (PowerToysModules.Overview, false),
+            (PowerToysModules.AdvancedPaste, false),
+            (PowerToysModules.AlwaysOnTop, false),
+            (PowerToysModules.Awake, false),
+            (PowerToysModules.CmdNotFound, false),
+            (PowerToysModules.CmdPal, false),
+            (PowerToysModules.ColorPicker, false),
+            (PowerToysModules.CropAndLock, false),
+            (PowerToysModules.EnvironmentVariables, false),
+            (PowerToysModules.FancyZones, false),
+            (PowerToysModules.FileLocksmith, false),
+            (PowerToysModules.FileExplorer, false),
+            (PowerToysModules.ImageResizer, false),
+            (PowerToysModules.KBM, false),
+            (PowerToysModules.LightSwitch, false),
+            (PowerToysModules.MouseUtils, false),
+            (PowerToysModules.MouseWithoutBorders, false),
+            (PowerToysModules.Peek, false),
+            (PowerToysModules.PowerDisplay, true),
+            (PowerToysModules.PowerRename, false),
+            (PowerToysModules.Run, false),
+            (PowerToysModules.QuickAccent, false),
+            (PowerToysModules.ShortcutGuide, false),
+            (PowerToysModules.TextExtractor, false),
+            (PowerToysModules.MeasureTool, false),
+            (PowerToysModules.Hosts, false),
+            (PowerToysModules.Workspaces, false),
+            (PowerToysModules.RegistryPreview, false),
+            (PowerToysModules.NewPlus, false),
+            (PowerToysModules.ZoomIt, false),
+            }
+            .Select(x => new OobePowerToysModule
+            {
+                ModuleName = x.Module.ToString(),
+                IsNew = x.IsNew,
+            }));
+        }
+
+        public OobePowerToysModule GetModule(PowerToysModules module)
+        {
+            return Modules.First(m => m.ModuleName == module.ToString());
+        }
+
+        public OobePowerToysModule GetModuleFromTag(string tag)
+        {
+            if (!Enum.TryParse<PowerToysModules>(tag, ignoreCase: true, out var module))
+            {
+                throw new ArgumentException($"Invalid module tag: {tag}", nameof(tag));
+            }
+
+            return GetModule(module);
         }
     }
 }