Catch and show game list errors at startup

[ZashIn]

• Catches errors while loading the game list (EA and Epic/Heroic/Legendary Games)
• Shows an error message at MO start with details about the problematic files and how to solve the problem
• Fixes lint errors (from feat(sims4): add ModDataChecker, ModDataContent #173 ?)

Remarks:

• I appended the original error message (without the stack trace), but one could also only log it and hide it from the message.
• This message will show up at every MO start until the files are either fixed or deleted. There is no option to hide it, since at this loading stage, there is no access to plugin options (IOrganizer) or similar.

Example error message:

Extends #154