Restart required after WSL install

[risu729]

The installer script cannot continue after restarting.

This might work.
https://stackoverflow.com/questions/15166839/powershell-reboot-and-continue-script

[risu729]

Got the log.
The installer script continues without restarting Windows, so the following commands fail.

The requested operation requires elevation.
Installing: Windows Subsystem for Linux
Windows Subsystem for Linux has been installed.
Installing: Ubuntu 24.04 LTS
Ubuntu 24.04 LTS has been installed.
The requested operation is successful. Changes will not be effective until the system is rebooted.
There is no distribution with the supplied name.
Error code: Wsl/Service/WSL_E_DISTRO_NOT_FOUND
Windows Subsystem for Linux has no installed distributions.

Use 'wsl.exe --list --online' to list available distributions
and 'wsl.exe --install <Distro>' to install.

Distributions can also be installed by visiting the Microsoft Store:
https://aka.ms/wslstore
Error code: Wsl/Service/CreateInstance/GetDefaultDistro/WSL_E_DEFAULT_DISTRO_NOT_FOUND
An unexpected error occurred while executing the command:
exists: The user name or password is incorrect.: "\\wsl.localhost\Ubuntu-24.04\home\W"
Windows Subsystem for Linux has no installed distributions.

Use 'wsl.exe --list --online' to list available distributions
and 'wsl.exe --install <Distro>' to install.

Distributions can also be installed by visiting the Microsoft Store:
https://aka.ms/wslstore
Error code: Wsl/Service/CreateInstance/GetDefaultDistro/WSL_E_DEFAULT_DISTRO_NOT_FOUND
Set-ItemProperty : Cannot find path 'HKCU:\Software\Microsoft\PowerToys' because it does not exist.
At line:28 char:1
+ Set-ItemProperty -Path HKCU:Software\Microsoft\PowerToys -Name Settin ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (HKCU:\Software\Microsoft\PowerToys:String) [Set-ItemProperty], ItemNotF
   oundException
    + FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.SetItemPropertyCommand

[risu729]

Need to find something like set -euo pipefail in Powershell.

[risu729]

#1284 solves the issue, but restart is still required.

[risu729]

#1284 seems not working well.