Increment sprint 2 V0.2.0

What's Changed

• Bugfix Tonen konden niet korter dan 1 seconden by @ikweswes in #8
• Fix/hold pianokey down by @StudentYoup in #13
• Feature/key modus by @StudentYoup in #14
• player loop false by @GerritScholten in #15
• Feature/result Pop-up by @Dekobra-NR in #9
• Feature/liedje keuze menu by @ikweswes in #12
• Geluid is meer als een keyboard by @ikweswes in #17
• Onboarding & menu knoppen balk by @GerritScholten in #16
• Feature/onboarding uitbreiding by @GerritScholten in #18

New Contributors

• @Dekobra-NR made their first contribution in #9

Full Changelog: Increment...increment2