Xcode -> Bazel Debugger integration may stop working under certain situations

Currently, we have a few ways to integrate with the debugger that may have fragility, especially in situations like migrating to Bazel. After running a Bazel build for the first time we generate a source map into the home directory.

Confirm if:
- Xcode is able to load this source map consistently and try to mitigate it otherwise
- Switching between Bazel and Xcode is working