fix(opentrons-ai-client): fix ChatContainer layout issue

[koji]

Overview

fix ChatContainer layout issue.
update the ChatContainer layout.

after

close AUTH-397

Test Plan

1. make -C opentrons-ai-client dev
2. type something and send button
3. repeat step 2 a couple of times
   Check all your messages are displayed correctly.

Changelog

Review requests

Risk assessment

low

[Elyorcv]

@koji When I continue submit again and again, it does not create scroll bar. Instead, it gets long

[koji]

@koji When I continue submit again and again, it does not create scroll bar. Instead, it gets long

Did you set any specific settings on your Mac like this?

I think the app always shows the scrollbar because of the side bar's height.

[Elyorcv]

need to choose always?

[Elyorcv]

@koji When I continue submit again and again, it does not create scroll bar. Instead, it gets long

Did you set any specific settings on your Mac like this?

I think the app always shows the scrollbar because of the side bar's height.

I tried default and always versions, but the same effect

[koji]

@koji When I continue submit again and again, it does not create scroll bar. Instead, it gets long

Did you set any specific settings on your Mac like this?
I think the app always shows the scrollbar because of the side bar's height.

I tried default and always versions, but the same effect

hmm, I cannot reproduce the issue.
Are you using Chrome?

[Elyorcv]

@koji When I continue submit again and again, it does not create scroll bar. Instead, it gets long

Did you set any specific settings on your Mac like this?
I think the app always shows the scrollbar because of the side bar's height.

I tried default and always versions, but the same effect

hmm, I cannot reproduce the issue. Are you using Chrome?

To be clear, there are two scrollbars: one is outside chat container which belong to chrome; another one is for the chat container itself. My problem is for the chat container. When you send many messages, it just extends without scrollbar.

[y3rsh]

Looked good in the demo branch.