refactor(allocator)!: remove String

[overlookmotel]

Previous PRs have removed all uses of String from the codebase, replacing it with StringBuilder. Now remove String entirely.

[overlookmotel]

• refactor(allocator)!: remove String #11262 👈 (View in Graphite)
• refactor(transformer): use StringBuilder instead of String #11260
• refactor(parser): use StringBuilder instead of String #11259
• refactor(ast, span): use StringBuilder instead of String #11258
• feat(allocator): introduce StringBuilder #11257
• feat(span): add Atom::from_strs_array_in method #11261
• perf(lexer): remove string allocation #11255
• perf(transformer/react-refresh): faster base64 encoding #11254
• main

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #11262 will degrade performances by 22.52%

_{Comparing 05-23-refactor_allocator_remove_string_ (c16ea02) with 05-23-refactor_transformer_use_stringbuilder_instead_of_string_ (202ffd2)}

Summary

❌ 1 regressions
✅ 37 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	mangler[cal.com.tsx]	2.7 ms	3.5 ms	-22.52%

[Boshen]

Merge activity

• May 24, 2:27 AM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• May 24, 2:27 AM UTC: Boshen added this pull request to the Graphite merge queue.
• May 24, 2:44 AM UTC: Merged by the Graphite merge queue.