Due to the yielding, `_node_cb` could be modified during node event management, resulting
in an exception. The items are now shallow copied to avoid issue.
- Error raised by `disco_info` where not properly handler, resulting in an exception
instead of appropriate logging and return value.
- `async` coroutines, type hints
`add_managed_node` now match node when they are exactly the same by default, but if the
new `strict_match` argument is set to `False`, the old behaviour of matching all node
which start with the given `node` argument is used.
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This is a huge configuration refactoring.
The configuration system now uses Pydantic settings, with better validation, better
support for environment variables and other goodies.
The main config files now use TOML instead of INI, this allow for better handling of
complex types, notably dict.
Plugins, components and frontends can declare their config settings in a class which will
be imported dynamically.
Pydantic models are used more and more in Libervia, for the bridge API, and also to
convert `domish.Element` to internal representation.
Type hints have also been added in many places.
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- Former bookmarks implementation is now labeled as "legacy".
- XEP-0402 is now used for bookmarks when relevant namespaces are found, and it fallbacks
to legacy XEP-0048/XEP-0049 bookmarks otherwise.
- CLI legacy bookmark commands have been moved to `bookmarks legacy`
- CLI bookmarks commands now use the new XEP-0402 (with fallback to legacy one
automatically used if necessary).
A/V conference now adds user metadata about the stream it is forwarding through XEP-0298.
This is parsed and added to metadata during confirmation on client side.
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