[New website] Front page

Suggestions

"Why MuseScore" (features) section:
- Remove duplicate "free download" button.
- Rephrase "Full import and export
support for MusicXML". For example, Dorico writes "Transfer to and from other programs via MusicXML, MIDI,
PDF, etc.", which mentions a larger range of formats while avoiding techy terms "import" and "export".

"Write music for" section:
- Make text smaller. It's clunky and larger than the text in the features section which is at least as important as this one, if not more.
- Add "and much more". The list currently implies writing music is limited to instruments/ensembles listed. As someone mostly transcribing drum parts from songs, I was confused.