⚡️ Allow to specific the fallback text delegate (#711)

Resolves #710

Author: AlexV525

CHANGELOG.md

@@ -9,7 +9,9 @@ that can be found in the LICENSE file. -->
 
 ## Unreleased
 
-*None.*
+**Improvements**
+
+- Allows to specify the fallback text delegate through `assetPickerTextDelegateFromLocale`.
 
 ## 9.6.0
 

lib/src/delegates/asset_picker_text_delegate.dart

@@ -26,9 +26,12 @@ const assetPickerTextDelegates = <AssetPickerTextDelegate>[
 ];
 
 /// Obtain the text delegate from the given locale.
-AssetPickerTextDelegate assetPickerTextDelegateFromLocale(Locale? locale) {
+AssetPickerTextDelegate assetPickerTextDelegateFromLocale(
+  Locale? locale, {
+  AssetPickerTextDelegate fallback = const AssetPickerTextDelegate(),
+}) {
   if (locale == null) {
-    return const AssetPickerTextDelegate();
+    return fallback;
   }
 
   final String languageCode = locale.languageCode;
@@ -39,7 +42,7 @@ AssetPickerTextDelegate assetPickerTextDelegateFromLocale(Locale? locale) {
     (e) => e.languageCode == languageCode,
   );
   if (matchedByLanguage.isEmpty) {
-    return const AssetPickerTextDelegate();
+    return fallback;
   }
 
   final matchedByScript = scriptCode != null