[Languages]: Support different language sets #87
Description
As someone on Discord suggested, the current implementation can cause problems for people from GB, Australia, or Canada, where some words might be spelt differently than in the US. Then Aspell will detect things that shouldn't be detected.
I just found the option --extra-dicts with which we can support US English and GB English, etc., at the same time.
But it does not let us switch languages. So we can't say English and German, for example.
With aspell -a --lang=en_US --extra-dicts=en_GB it accepts both spellings of initialise, whereas just one would always throw a mistake:
We could either add this as default flags in the Aspell class or add it as a config value as was suggested in #45