Bump version to 5.3

Registered AuthMe Extension

- Displays alts with same IPS
- Displays last login date

Affects issues:
- Close plan-player-analytics#1552

Fixed loader not being removed from player calendar

Sorted out loaders for graphs

Moved join address pie further down on server page

Fixed stackoverflow error

Use paper method when available for hostname

Revert changes to URIPathTest.java

Replace jcenter with mavenCentral since it is sunset

Update BanManagerExtension

- Made Sponge scope provided