chore: Use parsing logic from arb_generator

.github/workflows/pull_request.yml

@@ -24,3 +24,7 @@ jobs:
         run: dart format --set-exit-if-changed .
       - name: Unit tests
         run: dart test
+      - name: Ensure flappy_translator works
+        run: |
+          cd example
+          dart run flappy_translator

analysis_options.yaml

@@ -1 +1,6 @@
 include: package:lints/recommended.yaml
+
+analyzer:
+  errors:
+    # do not warn when importing implementations from arb_generator
+    implementation_imports: ignore

example/pubspec.lock

@@ -17,6 +17,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "5.10.0"
+  arb_generator:
+    dependency: transitive
+    description:
+      name: arb_generator
+      sha256: db689425994fc20d2a3c6a852d8a827daea3608ac3c374753cb0ebb56d1d6ca9
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.0.4"
   archive:
     dependency: transitive
     description:
@@ -117,10 +125,10 @@ packages:
     dependency: transitive
     description:
       name: excel
-      sha256: "3b0751b14128f10e7bfde4e13cefb82e7c020006d1270efa82e138cb80605a99"
+      sha256: f7cde34ffdbb397edeb4566621433bb820517cc0d8676c20d6122a85f749ee49
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.4"
+    version: "3.0.0"
   file:
     dependency: transitive
     description:

lib/src/services/flappy_translator.dart

@@ -1,13 +1,14 @@
 import 'dart:io';
 
+import 'package:arb_generator/src/services/file_writer/file_writer.dart';
+import 'package:arb_generator/src/services/parsing/csv_parser.dart';
+import 'package:arb_generator/src/services/validation/validator.dart';
+
 import '../configs/default_settings.dart';
-import '../extensions/file_extensions.dart';
 import '../utils/flappy_logger.dart';
 import 'code_generation/code_generator.dart';
-import 'file_writer/file_writer.dart';
-import 'parsing/csv_parser.dart';
 import 'parsing/excel_parser.dart';
-import 'validation/validator.dart';
+import 'validation/validator.dart' as internal_validator;
 
 class FlappyTranslator {
   void generate(
@@ -27,7 +28,7 @@ class FlappyTranslator {
     List<String>? commentLanguages,
   }) {
     final file = File(inputFilePath);
-    Validator.validateFile(file);
+    internal_validator.Validator.validateFile(file);
 
     // File is valid, state progress
     FlappyLogger.logProgress('Loading file $inputFilePath...');

lib/src/services/parsing/excel_parser.dart

@@ -1,9 +1,8 @@
 import 'dart:io';
 
+import 'package:arb_generator/src/services/parsing/file_parser.dart';
 import 'package:excel/excel.dart';
 
-import 'file_parser.dart';
-
 /// An extension of [FileParser] for files of type xlsx
 class ExcelParser extends FileParser {
   ExcelParser({