Added New feature - "Hide Original Language when Translated"

[pelmeniboiler]

Hi, I hope it's okay to not use the issue template for this, I felt it was slightly different from a traditional feature request.

• Sick of the mess created by effectively doubling the size of every tweet when you use auto-translate?
• Want to force yourself into finally learning how to read Devanagari through total immersion?
• Just tired of English and its all-encompassing universality and want to step back?

Presenting: "Hide original language when translated"

It just sits in the translate scripts, checks whether the user ticked its box in settings, then overwrites the original text after it's done being used by the translation api stuff but before it's appended to the TweetBody with the translation.

I tried my best to copy the way everyone else did things but I've never taken a code class and don't work in the industry so please let me know if I need to go back and fix it. If this is wrong, breaks something, or causes lag. I'm cool with learning how to make it better!

Thank you for coming to my pull request.

[dimdenGD]

Only add new strings at the bottom of language file, you need to move new ones.