refactor(FileUploadDialog.tsx): remove unused import of useLexicalCom…

…poserContext

The import of useLexicalComposerContext was removed as it is no longer being used in the FileUploadDialog component. This cleanup improves code readability and reduces unnecessary dependencies.

packages/editor-toolbar/src/components/FileUploadDialog.tsx

@@ -1,5 +1,4 @@
 import { useState } from "react"
-import { useLexicalComposerContext } from "@lexical/react/LexicalComposerContext"
 import { Dialog } from "@material-ui/core"
 import { useUploadFileMutation } from "dicty-graphql-schema"
 import { useLogto } from "@logto/react"