fix(YouTube): Improve litho filtering performance

[LisoUseInAIKyrios]

Improves litho filtering by allowing YT litho code to behave the same as unpatched.

If a component is filtered, the null sentinel value is returned at the same return index as the unpatched method. Previously the null sentinel returned early, which causes class fields and other cached values to never be set.

This change appears to improve memory usage on some devices.

Issue and fix was identified by @0xrxL

[0xrxL]

@LisoUseInAIKyrios Did you used the invoke-virtual (called before return-object) register, to retrieve StringBuilder?

[0xrxL]

Anyway...this fix can work or not (for this reason, every testing feedback can be helpful), but this is my current SoT with it:

[LisoUseInAIKyrios]

Both identifier and string builder are public fields on the config object. So no invoke method is needed.

For 19.16 I had to add an invoke virtual method on a parameter object to get the config, then access the identifier and builder from the field.

[LisoUseInAIKyrios]

This change needs an additional fix. Multiple threads are using the same litho object, which means storing the filtering result in an object field won't work unless it's stored in a thread local.