Fix persistent FOV when walk speed is ever set to zero

Fixes #3139

core/src/main/java/org/geysermc/geyser/session/GeyserSession.java

@@ -1692,7 +1692,8 @@ public class GeyserSession implements GeyserConnection, CommandSender {
 
             abilityLayer.setLayerType(AbilityLayer.Type.BASE);
             abilityLayer.setFlySpeed(flySpeed);
-            abilityLayer.setWalkSpeed(walkSpeed);
+            // https://github.com/GeyserMC/Geyser/issues/3139 as of 1.19.10
+            abilityLayer.setWalkSpeed(walkSpeed == 0f ? 0.01f : walkSpeed);
             Collections.addAll(abilityLayer.getAbilitiesSet(), USED_ABILITIES);
 
             updateAbilitiesPacket.getAbilityLayers().add(abilityLayer);