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Currently translated at 82.8% (416 of 502 strings)

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Currently translated at 100.0% (502 of 502 strings)

Translation: Converse.js/Translations
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Wait when fetching config, otherwise default of `true` for `trusted` is used erroneously.

Updating tab notifications is not something that should be done in the headless part of Converse.
Don't update the tab title, having a favicon is enough.

OMEMO should not be enabled if the device is not trusted and also not if
the cache gets cleared on logout.

Fixes #1250 Change favicon color when unread messages

When Converse runs inside a browser extension, enable browser sync and local storage for persistent storage

In MUCs, messages are fetched too late in order for it to be practical
to wait for messages before rendering various parts of the MUC view.

Previously there was a bug, in the sense that `messages.fetched` was
`undefined` when being `await`ed in `updateAfterMessagesFetched`.
Once this was fixed, this issue became clear.

since we create the `fetched` promise earlier

Fixes #2241

When we're showing only one chat at a time, we want to make sure that
all other chats have their `hidden` flag set to `true`.

Previously this was done in chatboxviews, but given that we want to
render UI based on state, this should be done in the headless part of
Converse.

As a result of the changes, the `beforeShowingChatView` has been
removed.

https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent

In the process, turn it into a component

* keep message in place after edition by assigning previous message original timestamp
* update time displayed to keep current behaviour
* add test to check a message remains in the same position of the history after being edited
* briefly describe pr changes in changelog

- `allow_user_trust_override`
- `clear_cache_on_logout`

The `persistent_store` setting can now also be set to `sessionStorage`

The `trusted` settings was in effect playing the role of two separate settings
and implicitly affecting a third ('persistent_store').

By breaking it up, we make things more explicit and allow for new
configurations. For example, clearing the cache on logout, while using
some kind of persistent store.