refactor(ast_tools): use spaces not tabs in TS type defs

[overlookmotel]

Follow-on after #6404. Use spaces instead of tabs in TS type defs, to match the code style wasm_bindgen uses for the types it generates.

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[overlookmotel]

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• feat(ast_tools): generate TS type defs as text file #6687
• feat(ast_tools): ability to generate text files #6686
• refactor(ast_tools): give GeneratorOutput and SideEffect named fields #6685
• fix(wasm): remove type defs for ArrayExpressionElement and Elision #6683
• refactor(ast_tools): use spaces not tabs in TS type defs #6682 👈
• refactor(ast_tools): use double quotes in TS type defs #6681
• refactor(ast_tools): add line breaks to generated code for ESTree derive #6680
• refactor(ast_tools): shorten generated code for impl Serialize #6684
• refactor(ast_tools): move #[allow] attrs to top of generated files #6679
• refactor(ast_tools): shorten code #6678
• refactor(ast_tools): rename var #6676
• refactor(ast_tools): shorten generated code by avoiding ref in matches #6675
• style(ast_tools): do not use ref in matches #6674
• style(ast_tools): fix formatting #6673
• style(regular_expression): re-order dependencies in Cargo.toml #6672
• main

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[codspeed-hq]

CodSpeed Performance Report

Merging #6682 will not alter performance

_{Comparing 10-19-refactor_ast_tools_use_spaces_not_tabs_in_ts_type_defs (e4e1deb) with 10-19-refactor_ast_tools_use_double_quotes_in_ts_type_defs (01b9e83)}

Summary

✅ 30 untouched benchmarks

[ottomated]

Again, do we care about matching wasm-bindgen's style? When this is being rendered as a text file directly it'll have a formatting step run on it so this seems unnecessary