fix: Store message should not override sender by default

[nicoloboschi]

Store message component overrides the input message sender and sender name to AI.
This makes hard to configure memory chatbot where the store message component gets the input message from the chat input node

[github-actions]

Pull Request Validation Report

This comment is automatically generated by Conventional PR

Whitelist Report

Whitelist	Active	Result
Pull request is a draft and should be ignored	✅	❌
Pull request is made by a whitelisted user and should be ignored	❌	❌
Pull request is submitted by a bot and should be ignored	✅	❌
Pull request is submitted by administrators and should be ignored	❌	❌

Result

Pull request does not satisfy any enabled whitelist criteria. Pull request will be validated.

Validation Report

Validation	Active	Result
All commits in this pull request has valid messages	❌	✅
Pull request does not introduce too many changes	❌	✅
Pull request has a valid title	✅	✅
Pull request has mentioned issues	❌	✅
Pull request has valid branch name	❌	✅
Pull request should have a non-empty body	✅	✅

Result

Pull request satisfies all enabled pull request rules.

_{Last Modified at 29 Jul 24 12:16 UTC}

[aws-amplify-sa-east-1]

This pull request is automatically being deployed by Amplify Hosting (learn more).

Access this pull request here: https://pr-3024.dmtpw4p5recq1.amplifyapp.com