jsPsych: Enabling an Open-Source Collaborative Ecosystem of Behavioral Experiments

Major Changes

• #2858 76e75080 Thanks @bjoluc! - Activate TypeScript's isolatedModules flag in the root tsconfig.json file. If you are facing any TypeScript errors due to isolatedModules, please update your code according to the error messages.

• #2858 810ed7a3 Thanks @bjoluc! - Migrate the build chain from TypeScript, Babel, and Terser to esbuild. Babel and Terser are no longer included as dependencies and the Babel configuration at @jspsych/config/babel has been removed. The minified browser builds are only transpiled down to ES2015 now.