<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
"Show Tray Icon" when you click tray icon has not sense.
If it's visible, show that has no effect,
if it's not, you can't make it visible by click it.
Remove the menu for that
This impl is just not showing the menu item, if open for the choice that
show "hide the tray icon" here
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## PR Checklist
- [ ] **Closes:** #xxx
- [x] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [x] **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
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
Locally tested
* Added option to toggle the system tray icon
At the moment, this hides the icon making the settings window inaccessible without first modifying the general `settings.json` file.
* Use IPC messages to manage the tray icon settings
* Fix launching second window binds to active settings process
* Added context menu option to hide tray icon
* Added Exit PT button to settings ui NavigationView.PaneFooter
* Moved DllImports to NativeMethods.cs
* Sentence case titles
* Fix whitespace
* Re-add exit icon to NavView
* Re-added toggle switch to new UI
* Fix build
* Fix build after merge main
* Fix the string to display
* add shut down buttons
* finish polish
* fix string
* Styling tweaks to titlebar and settingscards
* fix comment
* fix unit test
* fix ut
---------
Co-authored-by: Jaime Bernardo <jaime@janeasystems.com>
Co-authored-by: vanzue <vanzue@outlook.com>
Co-authored-by: Kayla Cinnamon <cinnamon@microsoft.com>
Co-authored-by: Niels Laute <niels.laute@live.nl>
