Improvements backlog

[lilliputten]

• Fix url filter parameters creating/parsing: it breaks on ?langCode=-&langCustom=undefined.

• Logging: Send AI generation messages as a trext file, not json:

• Show full-width questions preview list on topic page.

• Fix plural translations.

• Fix gradient titles (but check ellipsis stylings)

• Update language parameter usage in the trainings (workouts) filters (use default and '-') values. Also check what it's actualy filtering.
• Add 'Reload' button to the intermediate manage pages, where it's missed.

• Adjust sign-in button font size in the navbar.

• Use dedicated debug logging channel (for dev-mode).
• Add Vercel web analytics module.
• Refactor all prisma tests.
• Allow to reset topics language in settings. (?)
• Add settings to the header navbar.
• Add information text to the bottom of available topics list for unauthorized users, to encourage them to login and to start creating their own topics.
• Show real (translated, If possible) language names (Update in all remaining components).
• Creare a through-app catalog of react-query keys.
• Add cosmos components manager.
• Upgrade to a PWA-enabled app.
• Add "extra query" texts to topic and questiln data models (to combine them into one "extra" query text for a generation). Upcoming database model changes #79
• Add an option to select ai generation model to UI.
• Add "favorites" data model and table. Upcoming database model changes #79
• Add "Show my achievements publicly" settings option. #Upcoming database model changes #79
• Show total/current stats info on current view (eg, topics list).
• Ensure updating/revalidating ojects list after adding (editing, removing) of object(s). Problem points: topics list, updatting questions list react-query caches after the ai auestions generation.
• Display specific descriptive explanation messages for each AI provider in the generation dialog (eg: "Don't use large questions and answer counts" for Cloudflare).
• Add ability to merge question answers (considering they're on the same subject).
• Highlight just generated items (if the user was on the list which generated records has been added to).
• Show question examples on a topic details page. See Show question examples on a topic details page. #65
• Fix topic card meta tags.

• Trainings item (/trainings/recent): Add trainings history count.

• Category item (/categories/available): Remove author and creation date.

• Invalidate categories if updated categories list in a topic.
• Add ability to delete trainings.
• Add button "Training" on questions and answers management pages.
• Add a button for adding a topic in category list items.
• Display only error message without a form on limit error for topic, question, answer adding.

• Suggest real used topics languages in the topic filter parameters. (To gather all the used languages and crate searchable select input.)
• Add debug field into AIGenerations table.
• Form: trim long texts (descriptions, etc).
• Add additional (common) explanation for the question, in addition to answer's ones.
• Add generation limits info in "no questions/answers" pages.

• Add an "Add New Answer" to the "View Question" page (the same for "View Topic").
• Allow to display full question (answers, topics?) texts in the "Manage Answers" ("...Questions") pages, instead of truncated single-liners.

• Use the same color for disabled buttons in the top page menu and inner page messages (and errors).

• Add ability to import questions/answers data from uploaded json file.
• Add ability to export (download) questions/answers to json files.
• Remove pauses (when user sees the "Resume..." button) during training start.