fix(metro-plugin-typescript): respect root moduleSuffixes

[tido64]

Description

We should only set moduleSuffixes once at the project root.

See also discussions evanw/esbuild#2395 and evanw/esbuild#3019.

Test plan

Existing tests should pass.

To verify that file extensions change with the target platform, apply the following patch:

diff --git a/packages/metro-plugin-typescript/src/resolver.ts b/packages/metro-plugin-typescript/src/resolver.ts
index 9b150754..e173049e 100644
--- a/packages/metro-plugin-typescript/src/resolver.ts
+++ b/packages/metro-plugin-typescript/src/resolver.ts
@@ -160,6 +160,8 @@ export function resolveTypeReferenceDirectives(
   containingFileMode: ts.SourceFile["impliedNodeFormat"] | undefined,
   { resolveTypeReferenceDirective } = ts
 ): (ts.ResolvedTypeReferenceDirective | undefined)[] {
+  console.log(context.platform, context.platformFileExtensions);
+
   const { host } = context;

   const resolutions: (ts.ResolvedTypeReferenceDirective | undefined)[] = [];

Rebuild, then start the dev server. Example output:

% yarn start

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