left/right buttons

[hl9876]

Merhaba! Great app. Found that the on screen left and right buttons (pre-word, next-word) work as expected. But are opposite on keyboard control (line 30 & 33). https://github.com/cevherkarakoc/Speed-Reading/blob/master/src/components/Reader.js#L30

Is this because I am on a left to right text language/browser setting and you are right to left? I would expect on screen left and keyboard left to go backwards/pre-word. On screen right and keyboard right to go forwards/next-word.

Happy to fix this with a PR if it is a typo. Or if this is locale based I can look into a solution.

I'm using English browser.

This is my first issue on GitHub, hope it makes sense.