project clean up

add chords database and link it with detected freqiencies

tab chords numeration changed to letters notation

switch styles

fixed bugs

sidebar with options

Fix update projects script

remove old chords analyzer

fix current position

current position on oscillogramm

Update projects.json [skip ci]

Merge branch 'main' of https://github.com/ailjushkin/ailjushkin

fix canvas of oscillograph

init new chords analyzer