Editor timing UX

[peppy]

With more users turning to the lazer editor, one of the remaining pain points is loading a new beatmap and getting timing setup. Right now unless you know the exact offset/bpm, it's impossible to begin mapping.

This work will see the basic "timing wizard" setup which guides a user through finding the correct offset and BPM. It may also extend to design updates for the surrounding components in the editor.

Ongoing work:

• Add first pieces of editor timing UI #18339
• Fix Timeline potentially not updating visuals to correct state on first display #18390
• Update beat snap divisor control to be more in line with new designs #18393
• Handle beat divisor input on mouse down, rather than mouse up #18394
• Bring editor design metrics up-to-date #18396
• Add waveform comparison view to editor timing screen #18388
• Update editor menu area to new design language #18412
• Update bottom bar components to new design language #18413
• Add automatic control point tracking to the timing screen #18502
• Add background to main waveform row #18504
• Add the ability to lock the waveform display to a specific time location #18505
• Add adjustment buttons for BPM and offset #18508
• Improve flow of adding new control points at timing screen #18509
• Add metronome sound #18516
• Add tap for BPM button #18523
• Fix tutorial download state not matching correctly when already available locally #18526
• Fix timing screen crash when attempting to add group to self #18528
• Allow clicking away to deselect the current control point group #18529
• Change text on timing group add button when it is going to clone instead #18530
• Improve group tracking logic to avoid switching which point type unnecessarily #18531

[peppy]

Approaching the tail end of this. With everything merged, the whole flow of timing is feeling pretty good. Remaining main piece of puzzle is a tap button to get an approximate BPM.

Another thing I was looking at is a better offset workflow for audible adjustment (ie. looping over one beat around the current offset to allow for fine tuning), but I'm going to leave this for a future effort. It can already be done manually by clicking the play button.

[peppy]

Initial pass on the timing UX is complete. Still many tweaks I want to make, but it's in a state I'm happy to move on for now.