docs(ast): add docs for all span fields for JS/TS nodes

[camchenry]

Adds a documentation comment for all span fields in JS/TS nodes. This uses a shared markdown file so that we can easily update this across all structs in the future.

[camchenry]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• docs(ast): add docs for all span fields for JS/TS nodes #8828 👈 (View in Graphite)
• docs(ast): add allow(missing_docs) to all remaining fields for JS/TS nodes #8827
• main

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[codspeed-hq]

CodSpeed Performance Report

Merging #8828 will not alter performance

_{Comparing 02-01-docs_ast_add_docs_for_all_span_fields_for_js_ts_nodes (ee9f444) with 02-01-docs_ast_add_allow_missing_docs_to_all_remaining_fields_for_js_ts_nodes (52eb944)}

Summary

✅ 33 untouched benchmarks