[Bug]: When switching networks, the account selection should be cleared

[shannonwells]

What happened?

1. Make sure that you have at least one account on a network with an MSA Id that is not a Provider.
2. Go to Become a Provider
3. Select the network that has an MSA Id connected via your extension.
4. Ensure that the Account Ids show up in the Account selection dropdown
5. Click 'Change network'
6. The Account selection dropdown still has the previous Accounts

Expected: The Account selection options should be emptied when changing networks.

Relevant log output

No response