use bun.String.static instead of ZigString when immediately converting to JSValue

[nektro]

thankfully this wasnt used as much as i was expecting but this should save all of these instances from having an unnecessary JSC.ZigString instance in .rodata as well as a ZigString.static generic instantiation in .text.

found with ZigString.static\("([^"]+)"\).toJS and ZigString.init\("([^"]+)"\).toJS
being replaced with bun.String.static("$1").toJS

future work: add support for this in the linter so new instances dont make their way in

[robobun]

❌ @nektro, your commit 104c5e8 has 13 failures in #4231:

test/integration/next-pages/test/dev-server-ssr-100.test.ts - timeout on 🍎 14 x64

test/js/web/fetch/fetch-tcp-stress.test.ts - 4 failing on 🍎 14 aarch64

test/js/web/fetch/fetch-tcp-stress.test.ts - 4 failing on 🍎 14 x64

test/js/node/test/parallel/fs-watch-recursive-add-file-with-url.test.js - 1 failing on 🍎 14 aarch64

test/integration/next-pages/test/dev-server.test.ts - 1 failing on 🍎 14 aarch64

test/js/web/streams/streams.test.js - 1 failing on 🍎 13 x64

test/js/node/test/parallel/fs-watch-recursive-add-file.test.js - 1 failing on 🍎 14 aarch64

test/js/node/test/parallel/fs-watch-recursive-add-folder.test.js - 1 failing on 🍎 14 aarch64

test/cli/run/run-crash-handler.test.ts - timeout on 🪟 x64

test/cli/run/run-crash-handler.test.ts - timeout on 🪟 x64-baseline

test/js/node/watch/fs.watch.test.ts - 2 failing on 🍎 13 aarch64

test/js/node/watch/fs.watch.test.ts - 3 failing on 🍎 14 aarch64

test/js/node/watch/fs.watch.test.ts - timeout on 🍎 14 x64

test/cli/hot/watch.test.ts - 1 failing on 🪟 x64-baseline

test/cli/hot/watch.test.ts - 1 failing on 🪟 x64

test/js/bun/io/bun-write.test.js - 1 failing on 🪟 x64

test/js/bun/http/bun-serve-static.test.ts - 1 failing on 🍎 13 aarch64

test/js/bun/http/bun-serve-static.test.ts - 8 failing on 🍎 14 aarch64

test/cli/watch/watch.test.ts - 2 failing on 🪟 x64-baseline

test/cli/watch/watch.test.ts - 2 failing on 🪟 x64

[cirospaciari]

LGTM lets merge after CI