[Dev UI] Show trace data for the previous run in flow runner

[shrutip90]

Overview

Once we run a flow, we want to show the trace details for the run with the flow runner.

Requirements

1. Show the trace span tree for the run in a pop up drawer on the right, that should cover the existing right side panel containing Schema (Please ignore the styling changes in the trace tree for this task and we will have a separate task for adding the icons and updating the styling for trace tree):

2. On clicking on "Trace details" button on the top left for this panel, we should open a bigger mat-drawer showing the full trace details:

3. Remove "Open in flow runner" button on the root span details since we are already in the flow runner.

Open questions

• Should we pop up the trace on every run or if the user closes it once, should we stop the pop ups?