feat: add Conjugate app download data UI (#564)

[Mounil2005]

Contributor checklist

• This pull request is on a separate branch and not the main branch
• I have tested my code with the ./gradlew lintKotlin detekt test command as directed in the testing section of the contributing guide

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Description

This PR adds the download data UI for the Scribe-Conjugate app.

Files changed:

• app/src/main/java/be/scri/ui/screens/download/ConjugateDownloadDataScreen.kt (new) - A new screen that displays all 8 supported languages (English, French, German, Italian, Portuguese, Russian, Spanish, Swedish) sorted alphabetically. Unlike the keyboard app's download screen which only shows installed keyboards, this screen always shows all languages. It reuses shared components (LanguageItemComp, CircleClickableItemComp, SwitchableItemComp) and shared data classes (DownloadActions, CheckUpdateActions, LanguageItem) from the keyboard app. There is no empty state and no translation source language confirmation dialog, as these are keyboard-specific features.
• app/src/main/java/be/scri/App.kt - Added a new "conjugate_download_data" navigation route wired to ConjugateDownloadDataScreen, and updated ConjugateScreen's onNavigateToDownloadData to use this route instead of the keyboard app's "download_data" route.

Related issue

• Closes Creation of Conjugate App download data UI #564

[github-actions]

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[github-actions]

Maintainer Checklist

The following is a checklist for maintainers to make sure this process goes as well as possible. Feel free to address the points below yourself in further commits if you realize that actions are needed :)

• Tests for changes have been written and the unit test, linting and formatting workflows within the PR checks do not indicate new errors in the files changed

  • Tests may need to be reran as they're at times not deterministic

• The CHANGELOG has been updated with a description of the changes for the upcoming release and the corresponding issue (if necessary)