fix linting (and change a little wording in onboarding page)

src/libs/endorserServer.ts

@@ -680,6 +680,7 @@ export async function setPlanInCache(
  * @param error that is thrown from an Endorser server call by Axios
  * @returns user-friendly message, or undefined if none found
  */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
 export function serverMessageForUser(error: any) {
   return (
     // this is how most user messages are returned