Merge branch 'dev/3.0.0' into dev/5.0.0

# Conflicts:
#	api/build.gradle.kts
#	gradle.properties
#	proxy/src/main/java/com/velocitypowered/proxy/config/VelocityConfiguration.java

api/src/main/java/com/velocitypowered/api/proxy/Player.java

@@ -87,6 +87,13 @@ public interface Player extends
    */
   PlayerSettings getPlayerSettings();
 
+  /**
+   * Returns whether the player has sent its client settings.
+   *
+   * @return true if the player has sent its client settings
+   */
+  boolean hasSentPlayerSettings();
+
   /**
    * Returns the player's mod info if they have a modded client.
    *