Add Send Message Button Option

Problem

Currently, there is no option to enable a visible "Send Message" button in the chat interface. This can create accessibility challenges for users who: + Have difficulty using the keyboard (e.g., pressing Enter to send) + Rely on assistive technologies + Prefer explicit UI controls instead of keyboard shortcuts The absence of a dedicated send button may reduce usability and accessibility for these users.

Proposed solution

Add an optional "Send Message" button that can be enabled in the Accessibility settings. When enabled: + A visible send button appears next to the message input field. + Users can click/tap the button to send messages instead of pressing Enter. + The feature remains optional so the current minimal UI is preserved for users who prefer it. This would improve accessibility and make the interface more inclusive without changing the default experience.