have messages working but streaming still not fixed yet

Signed-off-by: Francisco Javier Arceo <farceo@redhat.com>

llama_stack/ui/hooks/use-autosize-textarea.ts

@@ -0,0 +1,39 @@
+import { useLayoutEffect, useRef } from "react"
+
+interface UseAutosizeTextAreaProps {
+  ref: React.RefObject<HTMLTextAreaElement | null>
+  maxHeight?: number
+  borderWidth?: number
+  dependencies: React.DependencyList
+}
+
+export function useAutosizeTextArea({
+  ref,
+  maxHeight = Number.MAX_SAFE_INTEGER,
+  borderWidth = 0,
+  dependencies,
+}: UseAutosizeTextAreaProps) {
+  const originalHeight = useRef<number | null>(null)
+
+  useLayoutEffect(() => {
+    if (!ref.current) return
+
+    const currentRef = ref.current
+    const borderAdjustment = borderWidth * 2
+
+    if (originalHeight.current === null) {
+      originalHeight.current = currentRef.scrollHeight - borderAdjustment
+    }
+
+    currentRef.style.removeProperty("height")
+    const scrollHeight = currentRef.scrollHeight
+
+    // Make sure we don't go over maxHeight
+    const clampedToMax = Math.min(scrollHeight, maxHeight)
+    // Make sure we don't go less than the original height
+    const clampedToMin = Math.max(clampedToMax, originalHeight.current)
+
+    currentRef.style.height = `${clampedToMin + borderAdjustment}px`
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [maxHeight, ref, ...dependencies])
+}