Garbage XML value caught.

[TBTS-2011]

### Tasks
- [ ] https://github.com/opera-gaming/gxmods/issues/153
- [ ] https://github.com/opera-gaming/gxmods/issues/157
- [ ] https://github.com/opera-gaming/gxmods/pull/154
- [ ] https://github.com/opera-gaming/gxmods/issues/85

[TBTS-2011]

Garbage XML value caught.

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Detailed Info:

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Garbage XML value caught. It seems that even opening the project directory is spewing out a garbage XML file with by far the worst HTML interface. Need to fix this issue as soon as possible. Opening the JSON file by the way is displaying this:

{
    "manifest_version": 3,
    "name": "12 BUCKLE MY SHOE",
    "description": "I LOVE EDDYMONDX, this was a bit of a hassle to make.",
    "version": "1",
    "icons":
    {
        "512": "eddy.png"
    },
    "developer":
    {
        "name": "Mechanical rotating wheel incorp"
    },
    "mod":
    {
        "schema_version": 1,
        "payload":
        {
            "background_music":
            [
                "music/Snaptik.mp3"
            ]
        }
    }
}

I don't think a main JSON file, which holds up a ratio of 49% of the ZIP file is supposed to be as barren as a wasteland, no offence. Need some improvement on the JSON file, need to add an error log, and most important of all, please do improve the XML/HTML User interface.

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