Load spell dict automatically when discovered

[Ri0n]

For example we have in settings russian and english.
For some reason these are stalled settings and russian is not actually installed.

No we start QtNote and it loads english dictionary. but russian is still in settings.
So we have two options now:

1. Remove russian
2. keep it for future starts

No we install Russian dictionary not closing QtNote and our Russian settings is still there.
QtNote does not check fs state so knows nothing about it. But next we open settings of speller and it rereads available dicts from fs. So no we have three options

1. Show Russian enabled and actually load it.
2. Show Russian disabled. What does not make much sense.
3. Show it like "Require app restart"