feat: implement Claude 3, Claude3.5, Nova Pro, Nova Lite and Mistral model integration with AWS Bedrock (#974)

* feat: Integrate AWS Bedrock with Claude 3.5 Sonnet, Claude 3 Sonnet, and Claude 3.5 Haiku

* update Dockerfile for AWS Bedrock configuration

* feat: add new Bedrock model 'Mistral' and update Haiku to version 3

* feat: add new bedrock model Nova Lite and Nova Pro

* Update README documentation to reflect the latest changes

* Add the icon for aws bedrock

* add support for serialized AWS Bedrock configuration in api key

.env.example

@@ -83,6 +83,17 @@ XAI_API_KEY=
 # You only need this environment variable set if you want to use Perplexity models
 PERPLEXITY_API_KEY=
 
+# Get your AWS configuration
+# https://console.aws.amazon.com/iam/home
+# The JSON should include the following keys:
+#   - region: The AWS region where Bedrock is available.
+#   - accessKeyId: Your AWS access key ID.
+#   - secretAccessKey: Your AWS secret access key.
+#   - sessionToken (optional): Temporary session token if using an IAM role or temporary credentials.
+# Example JSON:
+# {"region": "us-east-1", "accessKeyId": "yourAccessKeyId", "secretAccessKey": "yourSecretAccessKey", "sessionToken": "yourSessionToken"}
+AWS_BEDROCK_CONFIG=
+
 # Include this environment variable if you want more logging for debugging locally
 VITE_LOG_LEVEL=debug