SnappyMail still need the Old password when using Add Account feature

[emaddaou]

Describe the bug
I was able to replicate the issue, the problem related to old IMAP Email password, snappymail still using the old IMAP Email password when user try to use "Add Account" feature from the right drop down menu. A message pops up asking the user to feed the old password, once you feed it with the old password then "Add Account" function works. But, the problem that the user forgot old password.

Bottom line, If you change your Email password, and you wanted to add an extra IMAP account to snappymail, the function of Adding Account still associated with the old password because it's still needed for Decryption, but that is causing issues since most of the time the user forgot the old IMAP password.

To Reproduce
Steps to reproduce the behavior:

1. Change your IMAP account password
2. Now, add another IMAP account using "Add Account" from the right drop down menu.

Expected behavior
3. You will be asked to feed the old password in order to Decrypt hence the adding process works.
4. If you don't have the old IMAP account password, adding extra IMAP account to your SnappyMail Web Panel using Nextcloud doesn't work.

Screenshots

Please complete the following information:

• Browser: [Any browser]
• IMAP daemon: [dovecot debian 12]
• PHP version: 8.0
• SnappyMail Version: 2.38.2
• Mode: [nextcloud 30.0.2]

[the-djmaze]

When you know the old password:
SnappyMail should update the crypt key to your new password

When you DO NOT know the old password:
delete the crypt key from the server (there is no GUI for it).
it is at /_data_/_default_/storage/{DOMAIN}/{USER}/.cryptkey