fix can't resize workflow run panel (#18538)

web/app/components/workflow/panel/workflow-preview.tsx

 import {
   memo,
+  useCallback,
   useEffect,
   useState,
 } from 'react'
       switchTab('DETAIL')
   }, [workflowRunningData])
 
+  const [panelWidth, setPanelWidth] = useState(420)
+  const [isResizing, setIsResizing] = useState(false)
+
+  const startResizing = useCallback((e: React.MouseEvent) => {
+    e.preventDefault()
+    setIsResizing(true)
+  }, [])
+
+  const stopResizing = useCallback(() => {
+    setIsResizing(false)
+  }, [])
+
+  const resize = useCallback((e: MouseEvent) => {
+    if (isResizing) {
+      const newWidth = window.innerWidth - e.clientX
+      if (newWidth > 420 && newWidth < 1024)
+        setPanelWidth(newWidth)
+    }
+  }, [isResizing])
+
+  useEffect(() => {
+    window.addEventListener('mousemove', resize)
+    window.addEventListener('mouseup', stopResizing)
+    return () => {
+      window.removeEventListener('mousemove', resize)
+      window.removeEventListener('mouseup', stopResizing)
+    }
+  }, [resize, stopResizing])
+
   return (
     <div className={`
-      flex h-full w-[420px] flex-col rounded-l-2xl border-[0.5px] border-components-panel-border bg-components-panel-bg shadow-xl
-    `}>
+      relative flex h-full flex-col rounded-l-2xl border-[0.5px] border-components-panel-border bg-components-panel-bg shadow-xl
+    `}
+      style={{ width: `${panelWidth}px` }}
+    >
+      <div
+        className="absolute bottom-0 left-[3px] top-1/2 z-50 h-6 w-[3px] cursor-col-resize rounded bg-gray-300"
+        onMouseDown={startResizing}
+      />
       <div className='flex items-center justify-between p-4 pb-1 text-base font-semibold text-text-primary'>
         {`Test Run${!workflowRunningData?.result.sequence_number ? '' : `#${workflowRunningData?.result.sequence_number}`}`}
         <div className='cursor-pointer p-1' onClick={() => handleCancelDebugAndPreviewPanel()}>