Stop transpiling optional chaining and nullish coalescing with babel
Our version of webpack's acorn is too old and throws errors when we are not transpiling the optional chaining operators ?.
and nullish coalescing operators ??
even though all our targeted browsers support it.
Therefore we need to enable @babel/plugin-proposal-optional-chaining
and @babel/plugin-proposal-nullish-coalescing-operator
manually.
After we have updated to webpack@5, we can disable these plugins.
Edited by Lukas 'ai-pi' Eipert