Minor feature requests - Spellcheck, and token counter

[candre23]

This application is excellent, and exactly what I've wanted for a while now. I do have some suggestions though.

Like many folks, I've grown a little too accustomed to that squiggly red line telling me when I've misspelled something. If you could add this modern crutch to the char editor, it would certainly be appreciated.

A token counter would also be a helpful addition. I know that the increasingly wide array of tokenizers in circulation makes an exact number tricky to pin down, but even an estimated ballpark figure would be quite useful.

Thanks again for this app. Great stuff!