1.4.1: Performance & stability enhancements

What's Changed

Updated dependencies
Fix nonetype silence_end in !silence
Fix getErrorMessage call on Exception type
Add staff members to verified group by default
Add configuration for multiaccounting checks
Add login & packet threading
Disable client timeouts under high server load
Allow for bots to bypass message spamming checks
Fix rank #0 display
Submodule updates (https://github.com/osuTitanic/common/compare/07543c3ea606b286d033fcac84608ef0e2da7c32...20b90f22b5a73e3f83ca49bfb6f4a0307189e1ee)