Validate the JSON of PoolSizesIncrease in CitizenFX.ini

[Gogsi]

Goal of this PR

Somehow, users are ending up with an invalid JSON in the PoolSizesIncrease field in CitizenFX.ini. This PR catches the parse_error exception and resets PoolSizesIncrease to an empty value.

How is this PR achieving the goal

Catching the nlohmann::json_abi_v3_11_2::detail::parse_error exception, leaving the sizeIncrease map empty and emptying the PoolSizesIncrease field

This PR applies to the following area(s)

FiveM, RedM

Successfully tested on

Game builds: 3095, 3258

Platforms: Windows

Notes: Only tested on top of #3585 because I can't compile the client otherwise. I cherry-picked my commit and submitted only it

Checklist

• [ x] Code compiles and has been tested successfully.
• [x ] Code explains itself well and/or is documented.
• [x ] My commit message explains what the changes do and what they are for.
• [x ] No extra compilation warnings are added by these changes.

Fixes issues

Fixes this issue reported a few times on Discord https://discord.com/channels/192358910387159041/1409630888777613332/1409630888777613332

[Gogsi]

Encountered the issue again in the Cfx Discord. This time I asked to see their CitizenFX.ini. Not sure how, but a part of the json was missing.

[lonebadgerCfx]

It appears that poolSize could be fixed with this update. Please pull it innnn