[Xedra Evolved] Fix Sylph flying effect

[Standing-Storm]

Summary

Bugfixes "[Xedra Evolved] Fix Sylph flying effect"

Purpose of change

Fixes #76010

Describe the solution

1. The LEVITATION and CLIMB_FLYING sylph effects had the same id. Change the second id to the appropriate one.

2. Effects meant to be hidden need to have an empty string ([ "" ]) not an empty array ( [ ]) for their name and description. Change the empty array to an empty string.

Describe alternatives you've considered

Testing

Will test later

Additional context