Devlog 6

Helloooo! This is a slightly big update.

What I've done:

- More typo fixes, and updated a few words
- Changed some back end coding 
- It no longer stays green or red after getting a word right or wrong
- Added volume options
- Updated the "How to" image
- Added some tags to some words (Will work on more later) e.g. (gv) (iv) (n) (sv) (kuru verb) etc. (gv = Godan Verb) (iv = Ichidan Verb) (n = noun) (Kuru verb = kuru verb) 
- Added some voice clips. Some sound different because AI voices are hard to work with. (Atm only Kana, and verbs sections have full audio)
- Fixed font issues (As far as I know)

Thats about it, I think. THank you for playing!