Update instructions for creating game pages

[akleemans]

Add detail "for the same system" for recycling game pages

[greptile-apps]

Confidence Score: 5/5

[Low impact] This documentation clarification appears safe to merge.

Summary

Clarifies that recycled game pages must belong to the same system. No actionable issues found.

• The guide points developers to recyclable pages from the same system.

_{Reviews (1) · Last reviewed commit: "Update instructions for creating game pa..." · Reviewed by Greptile}

[akleemans]

The system of a Game entry can not be changed by a dev, so recycling only works for an entry which already has the same System.
Conversation in #dev-chat: https://discord.com/channels/310192285306454017/310195377993416714/1559484019421220872

[wescopeland]

I agree with the change in spirit, but I'm actually wondering if we should remove this line altogether from the docs. Recycling is kind of an antipattern because it messes with denormalized data in the DB.

@tomojira thoughts?

[RALordAndrew]

Recycling pages is discouraged in most cases now, but I don't think this is mentioned anywhere in the documentation. https://discord.com/channels/310192285306454017/386068797921951755/1509245235090297005

[akleemans]

I guess it's better to remove it here then as wes suggests? This is the developer onboarding page, so if it's generally discouraged, I think it's best to remove it here.

[tomojira]

Yeah, we could remove it. In that announcement I said it was still okay to recycle the ones named "No Hash" if there's minimal impact, so accidental duplicate pages wouldn't accumulate too much going forward. But maybe it's best to drop this altogether.

[akleemans]

Updated PR, removed recycle part.