The phone only ever read and wrote Sieve scripts and the vacation
responder of the user's own account, and the "Shared with me" list in
Account settings said to use the webmail for the rest. Port the
webmail's scoped settings (4c6c1aab) for these two panes:
- `api/sieve.ts` and `api/vacation.ts` take an optional account id and
gate on the account's own `accountCapabilities` for
`urn:ietf:params:jmap:sieve` and `urn:ietf:params:jmap:vacationresponse`,
treating non-personal accounts as capable because Stalwart doesn't
always advertise capabilities on them. Script blobs are uploaded and
downloaded against the same account.
- Tapping a shared account in Account settings scopes Settings to it:
only the Filters and Vacation Responder panes it supports are listed,
behind a "Managing: <name>" banner that leads back to the own account.
The scope is dropped when the signed-in account changes.
- The filter and vacation stores remember which account they hold,
reset when it changes and drop replies for an account the user has
already left, so one account's rules are never saved into another.
- The rule editor offers the managed account's folders as targets, and
the "vacation active" banner only shows for the own account.
Linus Rath