feat: add vue-i18n support (fixes #545)

[Lingchen111]

This PR adds vue-i18n support to create-vue templates, including:

• Basic i18n configuration setup
• Snapshot tests for i18n functionality
• Resolves the template integration difficulties mentioned in i18n vue plugin option ? #545

Implementation references the approach from closed PR #548

[Lingchen111]

Regarding CI Test Failures
Dear reviewers,
This PR currently fails CI checks due to the following issues:

Missing updates to codeTemplate in index.ts
Absence of some required files

I will promptly address these by:

1.Synchronizing all template index references
2.Adding missing configuration files
3.Re-running full test suites

If you identify any additional issues or have optimization suggestions during review, please don’t hesitate to point them out. Your guidance would be greatly appreciated!
Thank you for your time and consideration.

[btea]

package-lock.json does not need to be commit. Please resolve the code conflicts.

[Lingchen111]

package-lock.json does not need to be commit. Please resolve the code conflicts.

Thank you for pointing that out! I appreciate your feedback, and I’ll make sure to remove the package-lock.json in the next commit.