* feat(sdk): render iframe in chat-room component
* fix(ci): install optional dependencies
* feat(sdk): allow subset of attributes
* feat(sdk): accept root-domain attribute
* feat(sdk): accept custom room name or use sane default
* feat(sdk): set allowed features
* feat(sdk): add sdk instructions to embed code dialog
* fix(sdk): use dynamic rootUrl
* fix(sdk): use static defaultRoot
* feat(sdk): send config from SDK to chat
* fix(sdk): expire poller
* fix(sdk): pass parent domain to iframe via query param
* refactor(sdk): type message event data
* feat(sdk): send user id to chat frame
* feat(sdk): handle some attribute updates
* chore(package): add build:sdk:watch script
* refactor(sdk): move more code to updateIframeAttributes
* feat(sdk): support changing rooms
* feat(sdk): support more user settings
* docs(sdk): add SDK section to README
* feat(sdk): render root-url in embed code if necessary
* refactor(sdk): use map for chat room attributes
* fix(sdk): unbind event listener when chat-room is disconnected
* fix(sdk): properly tear down receipt listener
* fix(sdk): send config when frame reloads
* feat(sdk): listen for config updates
* feat(sdk): request config from sdk instead of sending it repeatedly
* refactor(sdk): use type guard for config message
* fix(sdk): use settings from SDK when there is no preexisting persisted data
* fix(sdk): observe all iframe attributes
* refactor(sdk): simplify bootup logic
* feat(sdk): improve embed code display
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