fix: item lines not showing to players upon joining (#204)

[bridgelol]

Notes: why even bother updating it straight upon join in the first place? We tick every 5 ticks or so, the difference from straight up invoking on join or awaiting ticking wouldn't be noticeable to the client. Not only that, this can cause weird desyncs in the client as well.

[bridgelol]

Running this on prod atm, works perfectly

[JoshTQ]

Bumpo, this would be very useful - had a client needing this fixed due to a Fabric Modification that requires similar changes