Translation to Ukrainian and corresponding UI changes, including translation of onroad Alerts

[keefeere]

Summary

This PR introduces UI internationalization (i18n) improvements across FrogPilot's UI/Qt components.
Almost all user-facing strings are now wrapped with tr(), enabling proper translation support and consistency with Qt's localization system.

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Key Changes

• Maps Settings (maps_settings.cc)

  • Replaced hardcoded strings ("0 MB", "Calculating...", "Not parked", "Offline...", etc.) with tr().
  • Unified cancel/download status messages into localized strings.

• Model Settings (model_settings.cc)

  • Added translation support for dynamic download progress messages:
    • Downloading "%1"...
    • Downloading... %
    • Downloaded!, Download failed..., etc.
  • Ensured both individual and bulk model downloads use localized progress/status updates.

• Theme Settings (theme_settings.cc)

  • Localized "Downloading...", "Idle", "Downloaded!", "Repository unavailable", etc.
  • Introduced a translation map for theme download states.

• Annotated Camera (frogpilot_annotated_camera.cc)

  • Localized "Desired: %1", "s", "1 minute", "1 second", etc.

• Onroad UI

  • FPS counter and drive stats labels wrapped with tr().
  • Improved time/date formatting (navigation_functions.h) with QLocale support.
  • Standardized elapsed/ETA formatting using translated units (hour, minute, second).

• Software Settings (software_settings.cc)

  • Added translations for updater states:
    • downloading…, checking…, waiting for vehicle to go offroad…, finalizing update….

• Alerts (alerts.cc, alert_tr.h)

  • Introduced centralized translation for alerts.
  • All alert text now processed through translateAlert() for consistency.

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Motivation

• Improve multi-language support for FrogPilot users.
• Ensure all UI messages are properly translated and consistent.
• Lay groundwork for complete Ukrainian translation (and future locales).

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Known Limitations / TODO

• Country names are not yet covered by translations.
• translate The Pond
  → To be addressed in a future PR.

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[FrogAi]

Thank you for your PR! If you're not already in the FrogPilot Discord, feel free to join and let me know you've opened a PR!

[FrogAi]

comma has plans to do something similar (if they haven't already) in regards to Python text strings due to their Raylib/Python UI rewrite, so I personally wouldn't stress over it too much honestly. But I see some good changes here so I'll merge this for now. Appreciate the fixes!

[keefeere]

Thanks!

[keefeere]

Hi, @FrogAi i saw my changes in release but somewhere lost alert translation part and alert_tr.h you desided not include that?
P.s. will add separate PR #299