UI: Add mode selection analytics tracking

[ksharma-xyz]

TL;DR

Added analytics tracking for mode selection events in trip planner

What changed?

• Added new analytics events: ModeClickEvent and ModeSelectionDoneEvent
• Integrated mode selection tracking in TimeTableViewModel
• Added new UI event ModeClicked to handle mode selection visibility
• Connected mode click analytics to the UI through TimeTableScreen and TimeTableDestination

How to test?

1. Open trip planner
2. Click on mode selection button
3. Verify analytics event is fired with correct fromStopId, toStopId, and displayModeSelectionRow state
4. Select/deselect different transport modes
5. Verify mode selection analytics event fires with correct unselected modes

Why make this change?

To track user interaction with transport mode selection, providing insights into how users filter their journey planning options and which transport modes are commonly excluded from searches.

[ksharma-xyz]

• UI: Add mode selection analytics tracking #614 👈 (View in Graphite)
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[ksharma-xyz]

Merge activity

• Feb 13, 3:43 PM EST: A user started a stack merge that includes this pull request via Graphite.
• Feb 13, 3:44 PM EST: Graphite rebased this pull request as part of a merge.
• Feb 13, 3:57 PM EST: A user merged this pull request with Graphite.