Warn/prevent changing the Add Game prefix after an installer was ran

[arielj]

Problem description

When adding a game with the Add Game dialog, clicking the Run Installer First button will create a prefix if needed, and the folder will be based on the app/game title typed in the Title field.

If the title is changed after that, the prefix is also updated, pointing to a new prefix instead of the original one.

Also users can change the wine version after that, affecting the prefix.

Feature description

Maybe the flow can be divided into:

• Add an already installed game (doesn't need the Run Installer First action)
• Install and add a game (needs the Run Installer First action)

If a user clicks Run Installer First, it could give more details to the user about what's going to happen and then lock some fields to avoid problems (like don't let the user change title/wine/prefix after that).

Alternatives

Not sure, the current way is an alternative, but there's a lot of room for mistakes.

Additional information

No response