feat(shared): add Transformers and Datasets quickstart snippets tab to RepoClone

[sabhi128]

Summary of Changes

This PR introduces ready-to-run Python quickstart snippets into the repository Clone/Download modal (RepoClone.vue) for models and datasets.

Key Enhancements:

1. Quickstart Tab (quickstart):
   • For Models: Displays ready-to-use Python snippet with transformers (AutoTokenizer, AutoModelForCausalLM).
   • For Datasets: Displays datasets library loading snippet (load_dataset).
   • Dynamically injects the current repository path (namespace/name).
2. Internationalization (i18n):
   • Added translations in English, Simplified Chinese, and Traditional Chinese (all.transformersTips, all.datasetsLibraryTips, all.quickstartTips).
3. Unit Tests:
   • Added test coverage in RepoClone.spec.js asserting that model and dataset code snippets render properly.

[Copilot]

🟡 Changes recommended

The added model quickstart snippet recommends trust_remote_code=True by default, which is an unsafe default that can execute untrusted repository code.

Get a fresh assessment by requesting another Copilot review.

Pull request overview

This PR adds a new “Quickstart” tab to the repository Clone/Download modal to show ready-to-copy Python snippets for model and dataset repositories, alongside supporting i18n strings and unit tests.

Changes:

• Added a conditional “Quickstart” tab in RepoClone.vue that shows Transformers (models) or Datasets (datasets) Python code snippets.
• Added new i18n strings for the quickstart header and library tips (EN / zh-Hans / zh-Hant).
• Added unit tests to verify the generated markdown includes the expected snippet content.

File summaries

File	Description
frontend/src/components/shared/RepoClone.vue	Adds the new “Quickstart” tab UI and computed markdown snippet generation for models/datasets.
frontend/src/components/tests/shared/RepoClone.spec.js	Adds tests asserting quickstart snippet markdown is generated correctly for model/dataset repo types.
frontend/src/locales/en_js/all.js	Adds English i18n strings for the new quickstart tips and header.
frontend/src/locales/zh_js/all.js	Adds Simplified Chinese i18n strings for the new quickstart tips and header.
frontend/src/locales/zh_hant_js/all.js	Adds Traditional Chinese i18n strings for the new quickstart tips and header.

Review details

• Files reviewed: 5/5 changed files
• Comments generated: 1
• Review effort level: Lite

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