feat(tracemetrics): Use metric type to expose applicable aggregates

[narsaynorath]

The metric types we support are currently counter, distribution, and gauge. When the metric is selected, the applicable options are presented for aggregates.

Updates the context to serialize the aggregateFields to the URL and adds a new component that renders a static list of options for the user to select. When a selection is made, we update the yAxis for that visualize context.

Notes:

• I haven't implemented default behaviour if the selected aggregate isn't compatible (i.e. going from a distribution looking at the percentile -> a counter, since counters don't have percentile). I will follow up at a later time
• In a future PR, I will update the metric context we use to store the name to also store the type so it can handle metrics with conflicting names but different types. At the moment it simply uses a .find to get the type

Demo:

Screen.Recording.2025-10-08.at.3.41.57.PM.mov

[linear]

LOGS-403 Show applicable aggregates in the select field