Partly fix Bitwig GUI issues; update dependencies

[tank-trax]

the GUI issue persists in Bitwig however the clap plugin displays in Qtractor, Reaper and Carla

I will contact Bitwig support soon to report this when I get a response I'll get back to you

[greatest-ape]

Ok! It might be interesting to check if other plugins using https://github.com/RustAudio/baseview work.

[tank-trax]

could you provide me some examples of plugins that use it in Linux?

[greatest-ape]

This is the only other one I know of: https://github.com/WeirdConstructor/HexoSynth