Message Box Position Issue and Reversed Background Text in Chat with Rider

Describe the bug
The message box is positioned too low on the screen, and the background text is displayed in reverse.

To Reproduce

Go to 'Place Order'.
Complete the process to place the order.
When the order is placed and assigned to a rider, click on 'Chat with Rider'.
See error
Expected behavior
The message box should be positioned slightly higher for better accessibility, and the background text should be displayed correctly, not in reverse.

Screenshots
IMG_0143

Smartphone (please complete the following information):

Device: IOS

Reproduce the flow from Place Order to Chat with Rider on an iOS device, then trace the chat screen that renders the message box and background text. Verify the layout and text direction against the expected behavior; done means the box is positioned higher and the background text is displayed normally.

Written by the indexing model from the issue text.