Adjust lobby log throttler to always show the last N logs

[ABCxFF]

Description

The following is a problematic scenario that can take place with the current lobby's log throttler system:

1. Malicious user starts attempting to attack server
2. Connections spam and cause unexpectedly high amounts of logs printed
3. Logs get ratelimitted
4. Malicious user successfully crashes the server but stacktrace and final debug information is never shown due to the fact the logs are being truncated by the ratelimitter

Alternatives solutions

Solution would be to strictly save the last 50-100 logs no matter what. If the ratelimit happens to be hit, then only begin deleting logs after they get old aka only delete it's not in the last 50 lines.

Prior art

[linear]

RVT-3748 Adjust lobby log throttler to always show the last N logs

[NathanFlurry]

Will likely go with the last X lines no matter what.