feat(i18n): add French and German translations

Full fr/de translations of the app (625 keys each), wired into the
Settings language picker and the small-screen overflow test. Material
ships fr/de localizations, so chrome resolves natively.

apps/app_seeds/lib/i18n/strings_en.g.dart

@@ -418,6 +418,12 @@ class Translations$settings$en {
 	/// en: 'Asturianu'
 	String get langAst => 'Asturianu';
 
+	/// en: 'Français'
+	String get langFr => 'Français';
+
+	/// en: 'Deutsch'
+	String get langDe => 'Deutsch';
+
 	/// en: 'About'
 	String get about => 'About';
 
@@ -2590,6 +2596,8 @@ extension on Translations {
 			'settings.langEn' => 'English',
 			'settings.langPt' => 'Português',
 			'settings.langAst' => 'Asturianu',
+			'settings.langFr' => 'Français',
+			'settings.langDe' => 'Deutsch',
 			'settings.about' => 'About',
 			'settings.aboutText' => 'Local-first, encrypted inventory for traditional seeds. AGPL-3.0.',
 			'settings.aboutOpen' => 'About Tane',
@@ -3024,10 +3032,10 @@ extension on Translations {
 			'sale.add' => 'Record a sale',
 			'sale.empty' => 'No sales yet. Note here what you sell or buy.',
 			'sale.iSold' => 'I sold',
-			'sale.iBought' => 'I bought',
-			'sale.direction' => 'Sold or bought?',
 			_ => null,
 		} ?? switch (path) {
+			'sale.iBought' => 'I bought',
+			'sale.direction' => 'Sold or bought?',
 			'sale.counterparty' => 'With whom?',
 			'sale.counterpartyHint' => 'A person or a collective (optional)',
 			'sale.amount' => 'Amount',