OB - update UI instructions

This text is confusing and needs to be updated:

Updated wording example below:

> Online Banking
> Pay for products and services through your financial institutions website.
>
> Add BC Registries as a payee in your financial institution's online banking system to make payments. You MUST input this number XXXXX as your account number.
>
> BC Registries must receive payment in full from your financial institution prior to the release of items purchased through this service. Receipt of an online banking payment generally takes 3-4 days from when you make the payment with your financial institution.

**A few questions:**
Does the system generate the XXXXX number for every BCROS acct that is created? (ans: yes for PAD, EFT and OB)
Is it generated when client chooses OB ? (periodic job runs every 5 minutes to create new CFS Account #s)
What will show for clients that have already chosen OB? (fetch the existing one that was created in the past)

Design link
https://www.figma.com/design/eRPbcgyiL2ViPPKyyTdLm5/Auth---Product-and-Payment-Updates?node-id=6629-223

Locate the existing Online Banking instructions in the UI and compare them with the replacement wording in this issue and the linked Figma design. Update the displayed copy and confirm that it explains the account number and payment timing clearly; the issue is done when the revised instructions match the approved wording.

Written by the indexing model from the issue text.