Minor language-specific case tweaks (#2396)

lib/providers/apps_provider.dart

@@ -2164,7 +2164,7 @@ class _AppFilePickerState extends State<AppFilePicker> {
       scrollable: true,
       title: Text(
         widget.pickAnyAsset
-            ? tr('selectX', args: [tr('releaseAsset').toLowerCase()])
+            ? tr('selectX', args: [lowerCaseIfEnglish(tr('releaseAsset'))])
             : tr('pickAnAPK'),
       ),
       content: Column(

lib/providers/source_provider.dart

@@ -1052,6 +1052,9 @@ List<MapEntry<String, String>> filterApks(
   return apkUrls;
 }
 
+bool isEnglish() => tr('and') == 'and'; // Quick hack, find a better way
+String lowerCaseIfEnglish(String str) => isEnglish() ? str.toLowerCase() : str;
+
 bool isVersionPseudo(App app) =>
     app.additionalSettings['trackOnly'] == true ||
     (app.installedVersion != null &&