Feat: New tray-icon that adapts to theme change (#33321)

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fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
This idea comes from @Shomnipotence. It replaces the old tray icon with
a new outlined design and adapts to windows' theme changes.


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## PR Checklist

- [ ] **Closes:** #xxx
- [ ] **Communication:** I've discussed this with core contributors
already. If 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

<!-- Provide a more detailed description of the PR, other things fixed
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
This should be obvious enough with the video



https://github.com/microsoft/PowerToys/assets/42881734/fb8f44c3-5dc0-452a-98c1-636d20b60635



<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
1. Start powertoys, it loads the tray icon of the current theme.
2. Switch theme in windows settings, it dynamically adapts.

---------

Co-authored-by: Niels Laute <niels.laute@live.nl>
Co-authored-by: Shawn Yuan (from Dev Box) <shuaiyuan@microsoft.com>

src/settings-ui/Settings.UI/ViewModels/GeneralViewModel.cs

@@ -164,6 +164,7 @@ namespace Microsoft.PowerToys.Settings.UI.ViewModels
             }
 
             _showSysTrayIcon = GeneralSettingsConfig.ShowSysTrayIcon;
+            _showThemeAdaptiveSysTrayIcon = GeneralSettingsConfig.ShowThemeAdaptiveTrayIcon;
             _showNewUpdatesToastNotification = GeneralSettingsConfig.ShowNewUpdatesToastNotification;
             _autoDownloadUpdates = GeneralSettingsConfig.AutoDownloadUpdates;
             _showWhatsNewAfterUpdates = GeneralSettingsConfig.ShowWhatsNewAfterUpdates;
@@ -253,6 +254,7 @@ namespace Microsoft.PowerToys.Settings.UI.ViewModels
         private static bool _isDevBuild;
         private bool _startup;
         private bool _showSysTrayIcon;
+        private bool _showThemeAdaptiveSysTrayIcon;
         private GpoRuleConfigured _runAtStartupGpoRuleConfiguration;
         private bool _runAtStartupIsGPOConfigured;
         private bool _isElevated;
@@ -406,6 +408,24 @@ namespace Microsoft.PowerToys.Settings.UI.ViewModels
             }
         }
 
+        public bool ShowThemeAdaptiveTrayIcon
+        {
+            get
+            {
+                return _showThemeAdaptiveSysTrayIcon;
+            }
+
+            set
+            {
+                if (_showThemeAdaptiveSysTrayIcon != value)
+                {
+                    _showThemeAdaptiveSysTrayIcon = value;
+                    GeneralSettingsConfig.ShowThemeAdaptiveTrayIcon = value;
+                    NotifyPropertyChanged();
+                }
+            }
+        }
+
         public string RunningAsText
         {
             get