Package translations mega issue

[rubenwardy]

To do

• Add language field to reviews
• Use translations when searching
• Add support for translating long desc
• Removing a language .tr should clear/delete PackageTranslation
• Determine if a package supports translation by looking for template.txt, not translated .tr files
• Track completion %
  • Can use https://hosted.weblate.org/exports/stats/minetest/nodecore/?format=json
• Add "Based on your reviews / favorites" to translate page
• UX: When .conf description doesn't match package description

Remaining untranslated

• QueryBuilder: title sorting
• Donate: title sorting, title page
• Homepage query options
• Shields title
• User todo: title sorting, template
• Bulk support names (all_game_support)
• Profile: title sorting
• Stats
• Carousel
• Collections: create edit
• Collections: package_add_to.html
• Collections: view
• forms.html: package_lists()
• render_reviews
• threads: render_threadlist
• notification
• package pages titles and more
• threads list title
• thread title
• editor todo
• zipgrep view results