fix: prompt and preview not show html like tag (#201)

web/app/components/base/block-input/index.tsx

@@ -70,6 +70,8 @@ const BlockInput: FC<IBlockInputProps> = ({
   const coloredContent = (currentValue || '')
     .replace(regex, varHighlightHTML({ name: '$1' })) // `<span class="${highLightClassName}">{{$1}}</span>`
     .replace(/\n/g, '<br />')
+    .replace(/</g, '&lt;')
+    .replace(/>/g, '&gt;')
 
   // Not use useCallback. That will cause out callback get old data.
   const handleSubmit = () => {