Bugzilla

Normally, we would avoid password requirement issues before we can even call `BackupService.enableEncryption`. However, there is a possibility that something goes awry anyways while trying to enable encryption. Therefore, we should:
- Catch any potential errors and visually display an error on the turn-on dialog
- Ensure that the turn-on dialog does *not* close until the user tries again without issue, or until they press the Cancel button

Similarly for `BackupService.setParentDirPath`, the function may be supplied a invalid folder or a folder that was deleted before confirming dialog options. We likely want to:
- Catch invalid file paths and visually display an error on the turn-on dialog
- Ensure that the turn-on dialog does *not* close until the user chooses another folder, or until they press the Cancel button

We expect this feature to be tested and have an entry in Storybook.

**Enabling Encryption**
Normally, we would avoid password requirement issues before we can even call `BackupService.enableEncryption`. However, there is a possibility that something goes awry anyways during this step. Therefore, we should:
- Catch any potential errors and visually display an error message
- If an error was caught from a dialog (ex. "turn on", "add password" dialogs), we likely want to *keep the dialog open* until the user tries again without issue, or until they press the Cancel button

**Disabling Encryption**
In the rare situation where we attempt to disable encryption for a backup that was never encrypted in the first place, we throw an error. It's not known at the moment if we really want to show an error or not.

**Setting Parent Dir**
For `BackupService.setParentDirPath`, the function may be supplied a invalid folder or a folder that was deleted before confirming dialog options. We likely want to:
- Catch invalid file paths and visually display an error on the caller widget (turn on dialog, or backup-settings)
- If the caller widget is a dialog, do *not close* it until the user chooses another folder, or until they press the Cancel button

We expect this feature to be tested and have an entry in Storybook.