remove "I" from verification to avoid ambiguity

Author: kentcdodds

app/routes/_auth+/verify.server.ts

@@ -90,8 +90,8 @@ export async function prepareVerification({
 
 	const { otp, ...verificationConfig } = generateTOTP({
 		algorithm: 'SHA256',
-		// Leaving off 0 and O on purpose to avoid confusing users.
-		charSet: 'ABCDEFGHIJKLMNPQRSTUVWXYZ123456789',
+		// Leaving off 0, O, and I on purpose to avoid confusing users.
+		charSet: 'ABCDEFGHJKLMNPQRSTUVWXYZ123456789',
 		period,
 	})
 	const verificationData = {