v0.3-beta: Spelling fixer

Changelog:

• removed debugging ui
• added spelling fixes to the website

now on the mozilla extension store: https://addons.mozilla.org/en-US/firefox/addon/dji-forums-enhancer/

v0.2-beta (distance converter)

This version automatically converts the Flight distance from ft to km. The Menu is only for debugging right now, will be improved later!