Do not initialize/run hoarcekat when game is running

[Quenty]

Running hoarcekat while the game is running leads to performance impact as it tries to scan the game/run pre-existing scripts. Please don't enable the plugin during this mode.

[Sleitnick]

This just started to affect me. I hope this hasn't become too stale. The main culprit for me is that Hoarcekat looks for stories in Workspace too, causing perf issues if a lot of instances are being added/removed to the workspace during runtime. Keeping the plugin from starting during runtime would fix this though.

Edit: It looks like this currently-open PR fixes this: https://github.com/Kampfkarren/hoarcekat/pull/44/files#diff-d2ab4346906770df99f0483076ab15f21986e32161da40a8895c24dc40f24ae9R16