The SmartBundle versions under v0.11.1 have the @babel/core dep in its optionalDependencies. Pnpm and other package managers can install it because it is acceptable behaviour.
pnpm issue: pnpm/pnpm#5928
Please, update up to any version above v0.11.1 and reinstall the SmartBundle package. It should remove the @babel/core from your project.
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