Complete redesign of home text

[NightScript370]

• Fix hiyaCFW capitilization
• Don't include a "We have languages" message when we clearly don't have any.
• What you actually install is Unlaunch. Mention that
• hiyaCFW & TWiLight Menu++ are optional, so explain what they are
• Keeping your battery plugged in at all times? Don't do that. There's no need to.
• Simplify the "Method I should use" message to a little notice in "What I should know before starting"
• Offer a valid reason to use Flipnote Lenny
• Remove the "Your console should come with one" message, as it's kind of redundant
• "follow" is a better word than "use".