[Windows] Fixed manifest path creation for egsSync

[Nocccer]

There was a problem, where the creation of folder 'C:/ProgramData/Epic/EpicGamesLauncher/Data/Manifests' failed, because mkdirSync wasn't called with recursive option. With recursive set to true, folder should be created now.

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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]

Good catch!