This element can be used to declaratively insert Converse into the DOM.
You can put `<converse-root>` into the DOM (e.g. by rendering it inside
a React component) before or afer Converse has loaded and/or has been
initialized.
It's better to parse an incoming message stanza early, than to have
all kinds of methods throughout the codebase that does querySelector
etc.
Firstly, it allows us to catch and report errors and malicious stanzas early on.
It also simplifies programming because you don't need to try and
remember how to properly parse a stanza, all the work is done upfront
for you.
Queue messages and handle them sequentially, each time waiting for promises to
resolve before handling the next message.
Updates #1899, which likely happens because an error message is received
before messages have been fetched.
- Combine all test init functions into `initConverse`
- Use `async` functions in more tests
- Replace `var` with `let` and `const` in more tests
- New utils method `toStanza` which converts a string to a Node
