### Is there an existing issue for this? - [X] I have searched the existing issues ### Describe the code change 1. The textarea should expand to fill the remaining vertical space in .form-group. 2. The "Send" button should stay fixed at the bottom of the .form-group container. 3. The tooltip and error message should display above the "Send" button without affecting the layout of the textarea.  ### Proposed solution 1. Use CSS flex properties within .form-group to control the height of the textarea. 2. Apply flex: 1 to textarea to allow it to expand and fill the available space. 3. Set align-self: flex-end on the "Send" button to ensure it remains at the bottom of the .form-group. ### Record - [X] I agree to follow this project's Code of Conduct - [X] I'm a GSSOC'24 contributor - [X] I want to work on this issue