Infinite Teleport

- Converted the mod from a ZIP asset pack to a standard .jar plugin.
- Added a clean in-game admin menu with /infiniteportals.
- Added configurable portal limits for each world.
- Added an Unlimited option, which remains the default setting.
- Added a live active portal count to the admin menu.
- Added player feedback showing the current portal count when a finite limit is enabled.
- Portal placement is now blocked cleanly before the block appears when the world limit has been reached.
- Existing portals are not removed if an admin lowers the configured limit.
- Portal limit settings are saved automatically between sessions.
- Added colored, branded feedback messages for portal-limit notifications.

Admin Permission:
mgg.infiniteteleporters.admin

**Note:
A limit of 0 prevents new player-made portals from being placed.
Unlimited mode does not send portal-placement count messages.