Feature gating for eventual wasm compilation

[makemeunsee]

Follow up & 1st step defined in the draft 'Helix on wasm' PR.

Feature gated most features that will be relevant in the wasm context, especially debugging and language server protocols support.

All new features are default ones, each feature is independent and can be compiled separately, e.g. cargo build --no-default-features --features dap.

[makemeunsee]

Windows CI build fails because of lack of disk space. I dont suppose I can help much with that, can I?

[makemeunsee]

Hi @archseer
What would be required still before merging this one?
CI fails in obscure ways: https://github.com/helix-editor/helix/actions/runs/6685114109, I dont think I can do much about it.
Let me know, thanks!

[makemeunsee]

Hi @archseer What would be required still before merging this one? CI fails in obscure ways: https://github.com/helix-editor/helix/actions/runs/6685114109, I dont think I can do much about it. Let me know, thanks!

hmm somehow the checks are green now, the GH actions reports are confusing me a little 🤷

[archseer]

Yeah sorry, it was an issue in the CI, cache. I cleared the cache and re-ran it. Will review this over the week

[makemeunsee]

Yeah sorry, it was an issue in the CI, cache. I cleared the cache and re-ran it. Will review this over the week

Hey, I've rebased, CI is back to green, please have a look!