Add Trace Visualization widget for displaying traces

[sync-by-unito[bot]]

Users would like to see a visualization of individual traces from their services. For now, these traces will be determined based on a user supplied trace-id header.

In addition, we can align the spans within the trace visualization using the recent clocksync integration.

Tasks:

[ ] Implement trace visualization in Vega

[ ] Implement PxL script for trace visualization

┆Issue is synchronized with this Jira Story by Unito