[Fix] Prevent uninstalling a game while it's running

[arielj]

This PR disables the "Uninstall" button while a game is running so it cannot be uninstalled by mistake.

Other games can be uninstalled (though we still have the limitation if not uninstalling an Epic game while another Epic game is being installed, but that's unrelated to this fix).

Apart from disabling the buttons, I also made the Uninstall dialog no-op when the game is playing, so if we add an uninstall button and we forget to disable it, it still won't allow the user to uninstall the game while it's running.

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Use the following Checklist if you have changed something on the Backend or Frontend:

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)

[Etaash-mathamsetty]

looks good, i will test it later

[Etaash-mathamsetty]

looks like it's working