Add UI infrastructure for modpack community translations

[Copilot]

Description

Implements UI components to display community-made translations for modpacks. Three elements added per mockup: "Download Translated" button, language count indicator, and translation team listing.

Changes

New Components

• StoreProjectTranslations.vue - Translation team list with clickable URLs and language badges

Modified Components

• StoreProjectHeader.vue - Added translate button and language count chip
• StoreProject.vue - Integrated translation section with conditional rendering
• StoreProjectCurseforge/Modrinth/FeedTheBeast.vue - Added translations array to project model and placeholder install handler

Data Model

interface TranslationTeam {
  id: string
  name: string
  url: string
  language: string
}

interface StoreProject {
  // ... existing fields
  translations?: TranslationTeam[]
}

Behavior

• UI elements only render when translations.length > 0
• Clicking team items opens URLs in browser
• Install button emits event (handler TODO: implement selection dialog)

Localization

Added keys: modpack.translationTeam, modpack.noTranslationsAvailable, modpack.languagesSupported, modpack.downloadTranslated

Integration

Translation data currently empty placeholders. Populate via backend API or community database:

const project = computed(() => ({
  // ... other fields
  translations: [
    {
      id: 'minecraft-inside-ru',
      name: 'minecraft-inside.ru',
      url: 'https://minecraft-inside.ru/translations',
      language: 'Russian'
    }
  ]
}))

Documentation

• docs/MODPACK_TRANSLATIONS.md - Architecture and integration guide
• docs/VISUAL_GUIDE.md - UI layout and examples

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Adding the ability to install translations for Minecraft mod packs in other languages.</issue_title>
<issue_description>I propose the possibility of installing community-made translations for Minecraft modpacks. The author of the translation and the websites where their translations of the packs can be downloaded will be indicated (the community will be able to suggest adding translations from specific teams to the modpack's page). Alternatively, the authors themselves can contact the launcher developer to have their version listed as an option for installation (installing the modpack with or without the translation).

</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Adding the ability to install translations for Minecraft mod packs in other languages. #1216

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