Make breakdown property values easily copyable

Feature request

Problem:
When breaking down event series by a custom event property, the chart use brakedown values as label for a line. These values might be things such as UIDs which are not meaningful on their own, making it hard to take action or investigate further. Currently, there is no easy way to copy a UID or use it to navigate elsewhere.

Ideas:

1. tweak the UI so breakdown values are easily copyable

2. Add an option to define a "label template" for a breakdown property, so use can for example use tamplate http://my-app.com/{{property_name}}

Additional context
Such insight are useful when tracking things like "most visited X".

Debug info

The issue does not mention any files, tests, or entry points. Start by locating the chart UI that renders breakdown values, then clarify whether the goal is copyable labels, configurable label templates, or both. Done should include an agreed interaction and verification that breakdown values can be copied or transformed as specified.