Updated to include Vocabulary levels (Colors)
- added in Vocabulary levels & audio for Colors1,2,3
- added in audio and levels for base kana (han/dakuten coming soon)
- removed "Spell It Out" level due to redundancy
- fixed some bugs with Vowels level
- fixed bug with ending screen pop up and toggling between katakana/hiragana
- audio clean up & swaps
- fixed some UI bugs