fix(exports): correct ./components/* source targets for two non-tsx modules - #446

Fixes the four broken targets reported in #445.

The defect

./components/* declares source and react-native as ./src/components/*.tsx, but two modules the pattern matches are not authored .tsx:

$ ls src/components/ | grep -E '^(index|copyComponentProperties)\.'
copyComponentProperties.ts
index.cts
index.ts

Export conditions match on key presence, not target existence, so there is no fallthrough to import/require — both subpaths are a hard ERR_MODULE_NOT_FOUND under either condition:

$ node --conditions=source -e "…require.resolve(…)"
[source] react-native-css/components/copyComponentProperties -> FAILED: MODULE_NOT_FOUND
[source] react-native-css/components/index                   -> FAILED: MODULE_NOT_FOUND

react-native is not dormant — Expo sets it for iOS and Android via unstable_conditionsByPlatform. source is the condition react-native-builder-bob's example-app workflow runs on.

The fix

Two exact keys. An exact key beats a pattern regardless of declaration order, mirroring the existing ./components/react-native-gesture-handler entry.

index takes .cts rather than .ts because that is what the exact ./components entry already declares — the wildcard's .tsx guess contradicted the map's own neighbouring entry.

Verification

Applied against the published 3.0.7 tarball, both subpaths resolve under source and react-native, and every other entry is unchanged. I checked the whole map rather than just these two: 509 declared targets across every entry and every condition, 0 missing after the fix.

That sweep is how the defect surfaced. It walks the real dist/module/** tree, expands each wildcard over it (skipping stems that have an exact key, since exact beats pattern) and asserts every declared target exists. It is generic — nothing in it is specific to my project — and it needs dist/**, so it belongs as a post-prepare check rather than an ordinary jest test. Happy to add it to this PR if you would like it; I left it out to keep this reviewable as a one-file fix.