Show custom security level on android
There are technically ways for the user to enter a custom security level on android.
On desktop, we show this as a separate type of security level, and encourage the user to switch to a pre-set level instead. We probably want the same feature on android. E.g.
- In the settings, show that the security level is "custom". This is probably and easier change.
- In addition, have some means of notifying the user when the security level is custom when they are not in the settings. Maybe we want a similar notification for desktop as well, since currently we just rely on the user noticing the small yellow dot in the toolbar button. This could be split into another issue if we don't want it to block the other change.