fix(search): replace raw sort labels with i18n text

[Talentgift24-ux]

#942 Replace developer-style sort labels in SearchResultsSorter with readable i18n text
Closes #942

Description

This PR addresses the UI inconsistency in the SearchResultsSorter component where raw developer-style sort identifiers (e.g., POPULARITY, NEWEST_FIRST) and the Sort_Sequence: label were hardcoded.

Changes made:

• Replaced the hardcoded static labels with dynamic i18n translation keys using the useInternationalization hook.
• Added corresponding translation keys (search.sortSequence and search.sort.*) to en.json, es.json, and ar.json.
• Ensured the human-readable text matches the friendly labels already used across the application (e.g., in SearchResults.tsx).

Related Issue

Closes #942

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation update

Checklist

• Code follows project style guidelines
• Self-review completed
• No console errors
• Uses Lucide icons consistently
• Responsive design implemented
• Starknet best practices followed

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