Increase the default `profiler_frame_max_functions` to 512
Increase the default `profiler_frame_max_functions` to 512

This should decrease the number of instances in which functions
don't appear in the profiler.

This partially addresses #40251.

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot