fix: source-map matching in React Native DevTools

[jbroma]

Summary

Fix bad source-map matching in DevTools by aligning the following:

• - add namespace to SourceMapDevToolPlugin
• - align sourceURL that gets passed to JSI evaluateJavascript

Before:

After:

Test plan

• - proper mapping in DevTools in testers on iOS
• - proper mapping in DevTools in testers on Android

[changeset-bot]

🦋 Changeset detected

Latest commit: 28b663e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@callstack/repack	Patch
@callstack/repack-dev-server	Patch
@callstack/repack-init	Patch

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[thymikee]

Could you document the addition of sourceUrl somewhere?

[jbroma]

Could you document the addition of sourceUrl somewhere?

It's not an addition per se but a fix, previously we were using the wrong value for that.

We should do a whole doc page on using DevTools and dealing with issues, I'll create a separate issue for that 👍

The only thing that user needs to do here is to remember to set output.uniqueName