chore: update README and remove localization documentation

- Updated image paths in README to reflect new locations.
- Removed outdated localization guidelines and related documentation files.
- Deleted unused metadata files for app descriptions and screenshots.

docs/localization.md

@@ -1,63 +0,0 @@
-# Localization Guidelines
-
-This app uses Flutter's gen-l10n with ARB files in `lib/l10n`.
-
-- Source language: `en` (`lib/l10n/app_en.arb`)
-- Translations: `lib/l10n/app_<lang>.arb` (e.g., `app_de.arb`)
-- Generated Dart: `lib/l10n/app_localizations*.dart` (generated by Flutter)
-
-## Adding New Strings
-
-1. Edit `lib/l10n/app_en.arb` and add a key with a clear description meta entry.
-   - Example:
-   ```json
-   "greeting": "Hello, {name}!",
-   "@greeting": {
-     "description": "Friendly greeting with user name.",
-     "placeholders": { "name": { "type": "String", "example": "Alex" } }
-   }
-   ```
-2. Run `flutter gen-l10n` or just `flutter run` to regenerate localizations.
-3. Use it in code: `AppLocalizations.of(context)!.greeting(name)`.
-
-## Placeholders and ICU
-
-- Always declare placeholders under the `@key.placeholders` block with `type` and optional `example`.
-- Use ICU for plurals/select:
-  ```json
-  "itemsCount": "{count, plural, =0{No items} one{1 item} other{{count} items}}",
-  "@itemsCount": { "placeholders": { "count": { "type": "int" } } }
-  ```
-
-## Punctuation and Style
-
-- Prefer typographic ellipsis `…` over `...`.
-- Keep capitalization consistent across locales.
-- Avoid embedding brand names in placeholders; keep them literal in strings.
-
-## Weblate
-
-This repository includes `weblate.yaml` to help auto-configure Weblate.
-
-- File mask: `lib/l10n/app_*.arb`
-- Template: `lib/l10n/app_en.arb`
-- New language file path: `lib/l10n/app_{language}.arb`
-- Monolingual: `true`
-- Base language: `en`
-
-Recommended Weblate add-ons:
-- “JSON/ARB reformat” to keep formatting stable.
-- “String freeze” (when preparing releases).
-- Checks for placeholders to ensure `{name}`, `{count}`, etc. are preserved.
-
-## Generated Files Policy
-
-- Generated localization Dart files are NOT committed. They are ignored via `.gitignore` and generated during CI/build.
-- Run `flutter gen-l10n` locally when you need IDE completion, or rely on `flutter run` which generates them automatically.
-
-## Common Tasks
-
-- Regenerate after ARB edits:
-  - `flutter gen-l10n --arb-dir=lib/l10n --output-dir=lib/l10n --template-arb-file=app_en.arb --output-localization-file=app_localizations.dart`
-- Validate:
-  - `flutter analyze`