Make ping command more user-friendly

[zefir-git]

Description

Players like to check their ping to know if they're lagging. They sometimes also check the ping of others.

1. The current behaviour requires using /spark ping --player <player> to check the ping of another player. There is no completion suggestion for the player name based on online players.
2. Players need to type a long command to check somebody else's ping

Proposed Behaviour

1. Add autocomplete for player names
2. Two proposed behaviours:
   • Add /ping alias that does not require --player <player>, i.e. /ping [player] (like the /spark:tps command); OR
   • Change the command usage to drop --player, i.e. /spark ping [player] so that a commands.yml alias can be created like {ping: spark ping $1-}

Extra Details

No response