Add global range selection sync to Gantt chart with toggle button

[aaanh]

What it does

Add range selection sync feature, similar to Flame graph selection, to the extension. Along with a sync toggle button for the Gantt chart.

https://github.com/user-attachments/assets/dec7dbe1-b219-43d6-9f08-cd062cc6a256

Along with this PR, refactored the UnitController class's numberTranslator to use a new utility factory method createNumberTranslator.

How to test

• Check out this PR.
• Open an lttng-ust trace (e.g. fibonacci or cyg-profile)
• Open both flame chart and flame graph views
• Left-mouse drag over the flame chart to select a range for analysis
• Turn on the sync with the toggle button on Flame graph view
• Expect to see the Flame graph is properly rendering agrregated states within the (global) time range selection
• Turn off to see the Flame graph is restored to show all states in experiment

Follow-ups

N/A

Review checklist

• [x] As an author, I have thoroughly tested my changes and carefully followed the instructions in this template