feat: Enable Network sharing with host.docker.internal

[PhantomDave]

I Was using this amazing app to do some work, but i had a legacy windows application that needed to connect to a database, we connect to the database using an SSH Tunnel and it was not working because the container was not sharing it' s network with the Linux machine

so i added the possibility to do that,

These are really minor edits, but should be pretty self-explanatory

[Copilot]

Pull Request Overview

Adds an option to allow the Windows VM container to resolve host.docker.internal to the Docker host gateway, enabling the VM to reach services on the Linux host.

• Introduces a new install option (addHostDockerInternal) and corresponding UI step.
• Updates Compose generation to set extra_hosts when enabled.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
src/types.ts	Adds addHostDockerInternal to InstallConfiguration and extra_hosts to ComposeConfig to support injecting host.docker.internal.
src/renderer/views/SetupUI.vue	Adds a new wizard step and checkbox to toggle host.docker.internal access; wires the flag into install payload; formatting cleanups.
src/renderer/lib/install.ts	Sets services.windows.extra_hosts when addHostDockerInternal is enabled.

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[PhantomDave]

Seems like i had prettier enabled, let me know if you want this to be reverted

[waffles-dev]

Formatting with prettier is good provided it follows the .prettierrc rules - some files have likely missed being formatted.
(Our .prettierrc probably needs some improvements as well in future - but that's a separate discussion)

[Levev]

WinBoat allows users to edit their compose file directly, and I think this is a great example of why that is. Adding this setting to the winboat config isn't necessary in my opinion.

I'll be closing this PR for now.