Lazily render components in "Component Tree"

[ericjim]

By default, Augury will reveal all nodes. We will change this behaviour by limiting the maximum initial rendering depth to some value which we deem "good enough". This will enhance the initial user experience.

Furthermore, we can optimize rendering by only showing the nodes that the user is currently looking at. We will only render the nodes that are revealed upon clicking the disclosure arrow (the upside down arrow). Any node that is revealed will stay in the component tree, even after it is hidden. Any interactions that occur thereafter on the same node will be faster.