fix(themes): drop unused legacy landing page template

[Ahmed-S-Abduallah]

🔍 Problem

Storefront themes still shipped a legacy landing page template even though landing pages now use a dedicated landing-page theme. Usage of the old route is confirmed to be zero.

✅ Changes

• 🛠️ Remove src/views/pages/landing-page.twig
• 🎨 Remove landing-page SCSS and its app.scss import
• 🐛 Drop product-card logic that only applied on the old landing-page slug
• 🛠️ Four: always initiate the mobile menu (no landing-page exception)
• 🛠️ Click: keep product-popup trigger on cards (no landing-page exception)

Homepage product sections that use source: landing-page are unchanged.

🧪 Testing

• Confirm src/views/pages/landing-page.twig is gone
• Open home/product pages and confirm product cards still render
• Confirm homepage blocks with source: landing-page still load products
• Four: confirm the mobile menu still opens
• Click: confirm product popup still opens from the card

https://salla-dev.atlassian.net/browse/TD-15098

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

View in Codacy

🟢 Metrics 0 complexity · 0 duplication

Metric	Results
Complexity	0
Duplication	✅ 0 (≤ 2 duplication)

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_{TIP This summary will be updated as you push new changes.}

[Ahmed-S-Abduallah]

/merge

[sallainternalbot]

⏳ Enqueued for Merge

Your pull request has been added to the merge queue. It will be merged automatically once it reaches the front of the queue ✅

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🔄 Queue Status

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🧬 PR's Dependencies

├── sallaapp/theme-raed#1037

[sallainternalbot]

🔄 Merge In Progress

This pull request has reached the front of the queue and is now being processed for merge.