Show Aggregated Perf Results in Perf Graph View

### Problem Description

With https://github.com/AdoptOpenJDK/openjdk-test-tools/issues/73, we've added the ability to aggregate the perf results from multiple iterations. We should update Perf Graph View to use and display aggregated perf results in order to comply with the new design.

### Proposed Changes

Besides the info that's already displayed, show all aggregated data for each build:

- max
- min
- median
- stddev
- CI
- iteration

### Assigned Contributors
I'll be working with Sophia (@sophiaxu0424) from my team to add this feature.

Start by reviewing issue 73 and the Perf Graph View entry point to understand the aggregated result data now available. Update the view to display max, min, median, stddev, CI, and iteration for each build, then verify that all listed metrics appear alongside the existing information.

Written by the indexing model from the issue text.