chore: update type definition to resolve lint error in Base usage at text-editor.tsx (#10083)

web/app/components/workflow/nodes/_base/components/editor/base.tsx

   isFocus: boolean
   isInNode?: boolean
   onGenerated?: (prompt: string) => void
-  codeLanguages: CodeLanguage
+  codeLanguages?: CodeLanguage
   fileList?: FileEntity[]
   showFileList?: boolean
   showCodeGenerator?: boolean
             e.stopPropagation()
           }}>
             {headerRight}
-            {showCodeGenerator && (
+            {showCodeGenerator && codeLanguages && (
               <div className='ml-1'>
                 <CodeGeneratorButton onGenerated={onGenerated} codeLanguages={codeLanguages}/>
               </div>