[UI] Remove Extra System Requirements option from Game Sub Menu

[redromnon]

There's already a System Requirements section in the Tab view. Thus, it doesn't help to keep the same option in the sub menu.

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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)

[flavioislima]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[redromnon]

I have read the CLA Document and I hereby sign the CLA

[arielj]

I'm not sure if having the duplicated option to see the requirements is a problem, we also have the browse files and browse wine prefix links that are duplicated and I don't think it's an actual issue (users may find it easier to find things inside the 3-dots menu)

like... if a user has a narrow screen, it might be not obvious that there's a System Requirements tab on that right pane

[redromnon]

Makes sense. Some users may prefer using the three-dots menu. It would prefer to use the Monitor icon instead of the DesktopAccessDisabledIcon in the menu.

On another note:

like... if a user has a narrow screen, it might be not obvious that there's a System Requirements tab on that right pane

For this issue, can a scrollbar be added to tell the user that another tab exists? Here's an example of this, where the user wouldn't know the System Requirements tab exists unless there's a scrollbar present.