vanilla repl

[felixroos]

approaches #776

hopeful outcomes:

• simplicity of the codebase (easier to read / change / maintain)
• better performance

this is a bigger refactoring, with the goal of getting rid of @strudel.cycles/react + its dependency on @uiw/react-codemirror.
Currently, the main pieces of the react package are useStrudel (used in main repl) + MiniRepl (used in docs).
It also holds all of the codemirror themes.
I came to realize that react is not very practical to implement these things, as they are mostly data structures + state management without much ui. It was never a well thought out decision, as the use of react for these non-ui things just grew out of the ui written with react (which is still a good choice imo).
Instead, the plan is to implement the main repl + the mini repl with the @strudel/codemirror package, which is a much thinner wrapper around the core repl (repl.mjs). It is just vanilla js, using codemirror directly instead of going through another wrapper package (@uiw/react-codemirror).

What I've done so far:

• pull module loading / eval scope population / audio init into prebake + adapt Repl + MiniRepl to it
• improve codemirror package to support new highlighting logic + some settings (theme, font)
• manage repl state inside repl.mjs directly using nanostores (not sure about this yet)
• handle custom keyboard shortcuts in CodeMirror (react package) to see how good codemirror handles them + use them in MiniRepl + Repl
• refactor nano-repl
• smarter way to reset sounds on shuffle
• add /vanilla route with new version of main repl
• keeping / for testing + maybe PRs will split to be able to test it longer

todo:

• implement remaining settings in codemirror.mjs
• test all main repl functions
• refactor draw / onPaint logic
• refactor MiniRepl
• fix: panic will silence fx sends, then add reevaluate + panic stop
• test nano-repl

[felixroos]

repackaged this partly in #863