fix: Make declarations work without ts proxy lib #718

[Bnaya]

Fix #718,
Restructure files structure so on consuming project, when importing symbols from the package top level,
It will not load any d.ts file that references Proxy related types.

Feel free to suggest other files names/split :)

Oh and i have that ugly withoutActualValueSymbolThisFileIsGoneInTypesDonooWhy.toString thing,
that without it, something in the toolchain made proxyStateTypes not appear in the final dist dir, means broken declarations
(when compiling with tsc it worked properly)

Testing:
I couldn't see any infra to test types,
Did a local check.

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[octogonz]

👍👍 I have confirmed that this eliminates the compile error that I reported in #718

Thank you very much for the quick fix!

[mweststrate]

Giving the low need for this fix and the in the meantime conflicting code, I'll close the PR for now unless there's heavy objections :)