Add option for Social Spy to use player names

[Bobcat00]

Information

This PR closes #1995 from 5 years and 8 months ago.

Details

Proposed feature:

Add a config file option for Social Spy to use either display names (the default) or player names in its output.

~~Also fix a bug which has been present for 6+ years where socialMutedSpyPrefix should have been socialSpyMutedPrefix.~~ (This was fixed in 2.x with the Adventure changes.)

Environments tested:

OS: Linux 4.15.0-213-generic

Java version: Oracle 17.0.8+9-LTS-211

• [x] Most recent Paper version git-Paper-381 (MC: 1.20.4)
• [ ] CraftBukkit/Spigot/Paper 1.12.2
• [ ] CraftBukkit 1.8.8

Demonstration:

Sample output with socialspy-uses-displaynames: true (the current behavior and default):

Sample output with socialspy-uses-displaynames: false:

I'll note that I find the second version to be much more readable.

[Bobcat00]

Rebased and retested successfully.