Add support for Google AI provider - Gemini 1.5 Pro (#88)

Co-authored-by: David Miguel <[email protected]>

README.md

@@ -22,8 +22,8 @@ For example, how the UI should behave when the user interacts with it.
 
 **3. Code generation**
 
-The app leverages the power of OpenAI GPT-4o multimodal LLM to transform
-your screenshot and instructions into Flutter code.
+The app leverages the power of multimodal LLMs (OpenAI GPT-4o or Google Gemini 1.5 Pro)
+to transform your screenshot and instructions into Flutter code.
 
 **4. Run the code**
 

lib/app/injection/injection.dart

@@ -4,6 +4,7 @@ import 'package:get_it/get_it.dart';
 import 'package:github/github.dart';
 import 'package:go_router/go_router.dart';
 import 'package:injectable/injectable.dart';
+import 'package:langchain_google/langchain_google.dart';
 import 'package:langchain_openai/langchain_openai.dart';
 import 'package:syntax_highlight/syntax_highlight.dart';
 import '../navigation/router.dart';
@@ -31,6 +32,9 @@ abstract class InjectionModule {
   @singleton
   ChatOpenAI get chatOpenAI => ChatOpenAI();
 
+  @singleton
+  ChatGoogleGenerativeAI get chatGoogleGenerativeAI => ChatGoogleGenerativeAI();
+
   @singleton
   OpenAIDallETool get dallETool => OpenAIDallETool();