json.Unmarshal parses all numbers to float64, which breaks any integer
settings values. This PR changes MetaSettingsType.UnmarshalJSON to use
json.Decoder, which is capable of parsing into a meta-type json.Number,
which can be interpreted as a float or an integer. It also properly
handles pointer types.
This migrates all remaining eventbus events sent over the websocket to
use the wps interface. WPS is more flexible for registering events and
callbacks and provides support for more reliable unsubscribes and
resubscribes.
Fixes an infinite loop in the layoutModel atom synchronization that
would cause the atom to update indefinitely when the root node is
deleted.
Also adds a dedicated `disabled` flag for the IconButton decl so we can
disable the onClick handler when the button is disabled.
Also updates the Magnify toggle button to use this new flag, so that
when there's only one leaf in a layout, the magnify button is disabed.
Evan Simkowitz
Mike Sawka
Sylvie Crowe
sawka