Verify all "parts" docs

[Pomax]

Verify that we're using proper @param and @return everywhere, with properly formatted example code.

• [x] disablers.js
• [x] dom.js
• [x] draw.js
• [x] general.js
• [x] math.js
• [x] project.js
• [x] setters.js
• [x] transform.js