fix: wire up embedded examples correctly

[dummdidumm]

also cleans up some code in the embed Svelte component

fixes #259, though there's a lot of work around getting examples building properly to do:

• right now it's built from a generated-and-checked-in JS file. Should come from a folder instead
• decision: should that examples folder be curated inside the Svelte repo or here?
• the examples page is gone at the moment, we need to bring them back in some form (IIRC the idea was to have a dropdown on the REPL)

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[Rich-Harris]

right now it's built from a generated-and-checked-in JS file. Should come from a folder instead

I don't totally follow what this means — what file is generated/checked in?

should that examples folder be curated inside the Svelte repo or here?

definitely in here, I think

the examples page is gone at the moment, we need to bring them back in some form (IIRC the idea was to have a dropdown on the REPL)

Yeah my thinking was that we'd have a menu icon directly beneath the Svelte logo, which would open a dropdown with a bunch of examples and also a 'create new' option that would blank everything out. The current default 'hello world' would be one of those options

[dummdidumm]

I don't totally follow what this means — what file is generated/checked in?

It's coming from src/lib/generated/examples-data.js right now. I believe you checked it in (by accident or on purpose, I don't know) when setting up this repo.

I'll continue working on this once this is merged.