docs(wasm): correct and update docs

[overlookmotel]

Update the docs for @oxc-parser/wasm NPM package.

• Fix the examples. initWasm no longer exists in Node.js bindings, and has been replaced by initSync in browser bindings.
• Add notes that AST is ESTree-compatible.
• Clarify the text about oxc-parser package.

I am not 100% sure that the web example is now correct, as I've not tested it, but from looking at the code for the bindings, it looks like it should be.

[overlookmotel]

• docs(wasm): correct and update docs #9260 👈 (View in Graphite)
• fix(wasm): transfer AST to JS as JSON string #9259
• main

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[Boshen]

Merge activity

• Feb 20, 9:37 AM EST: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Feb 20, 9:38 AM EST: Graphite rebased this pull request after merging its parent, because this pull request is set to merge when ready.