Reduce broadcast range for container updates

[Erza]

Pull Request Prelude

• I have followed proper The Forgotten Server code styling.
• I have read and understood the contribution guidelines before making this PR.
• I am aware that this PR may be closed if the above-mentioned criteria are not fulfilled.

Changes Proposed

Containers can never be opened if a player is more than 1 SQM away from it, hence we are doing unnecessary work here by sending updates to clients that are too far away from the container

Issues addressed:

[nekiro]

why are we looping twice though in these methods? Instead of once and execute both methods (sendUpdate, onUpdate)

[Erza]

why are we looping twice though in these methods? Instead of once and execute both methods (sendUpdate, onUpdate)

I don't know either, but it is like that all over the codebase. Once I read a comment somewhere on this repo about there being a possible race condition if it's not done this way? Might be wrong tho