[GOG] Retry GOG install info if invalid language

[arielj]

This PR fixes #2112 (and probably that problem for other games).

We were passing en-US for all games when getting the download info, but some games like Roller Coaster Tycoon display 0. When using en-us it works fine.

What this PR is doing is:

• first try with en-US (most games are fine with this from my tests)
• if the list of languages in the install info does NOT include en-US, check which languages are valid
• if en-us is a valid language, use it, else, use the first language in the list

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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]

I believe we could also use the platform we have on context, this could improve the re-render process I guess.