Avoid no-op media deletes

Fix bug in state group storage

Fix various embarrassing typos around user_directory and add some doc.

Fixes a bug where the persisted state groups were different to those actually
being used after auth resolution.

This is duplicated, so let's factor it out before fixing it

this is internal to statestore, so let's keep it there.

Fix for #2635: correctly update rooms avatar/display name when modified by admin

This reverts commit f9b255cd, reversing
changes made to 1bd654da.

Return whether a user is an admin within a group

Ignore <noscript> tags when generating URL preview descriptions

Logging and logcontext fixes for Limiter

Add some logging to the Limiter in a similar spirit to the Linearizer, to help
debug issues.

Also fix a logcontext leak.

Also refactor slightly to avoid throwing exceptions.

If there are no media entries to delete,
avoid creating transactions, prepared statements
and unnecessary log entries.

Signed-off-by: Slavi Pantaleev <slavi@devture.com>

Make the get_rooms_in_group API more sane

support inhibit_login in /register

Return entries with is_public = True when they're public and is_public = False otherwise.

Allow things to pass inhibit_login when registering to ... inhibit logins.

Add more hooks to ModuleApi

Add a hook for custom rest endpoints

Factor _AccountHandler proxy out to ModuleApi

Factor out _configure_named_resource

add `get_user_by_req` and `invalidate_access_token`

Let the user specify custom modules which can be used for implementing extra
endpoints.

We're going to need to use this from places that aren't password auth, so let's
move it to a proper class.

This was a bit of a code vomit, so let's factor it out to preserve some sanity

Notify auth providers on logout