feat: Add support for handling chat input keydown events

src/utils/key-down.tsx

@@ -0,0 +1,19 @@
+export const handleChatInputKeyDown = ({
+    e,
+    sendWhenEnter,
+    typing,
+    isSending
+}: {
+    e: React.KeyboardEvent
+    typing: boolean
+    sendWhenEnter: boolean
+    isSending: boolean
+}) => {
+    return import.meta.env.BROWSER === "firefox"
+        ? e.key === "Enter" &&
+        !e.shiftKey &&
+        !e.nativeEvent.isComposing &&
+        !isSending &&
+        sendWhenEnter
+        : !typing && e.key === "Enter" && !e.shiftKey && !isSending && sendWhenEnter
+}