ui: Support pinning tracks and drawing all flows for a selected app (#6655)

Previously, the Android Input Lifecycle plugin only allowed tracing the
lifecycle of a single selected input event at a time, and did not have a
way to automatically pin all input pipeline tracks for a specific app.

This PR adds two new capabilities to the Android Input Lifecycle plugin
to improve trace analysis:

1) Drawing all input flows for a selected app:
   Adds commands "Android: Draw all input arrows (With speculative)" and
   "Android: Draw all input arrows (No speculative)". These commands
   display all input flow arrows for the currently selected app, helping
   the user visualize the global flow of inputs at once.

2) Pinning tracks for a selected app:
   Adds a command "Android: Pin input pipeline related tracks" which
   prompts the user to select an app, and automatically pins all related
   tracks in the input pipeline.

Additionally, this PR refactors index.ts to clean up internal state
management and extract reusable helper methods:
- extractConnectionsFromRows(): Extracts arrow connections from row
datasets.
- useRowState() & applyInitialSelection(): Simplifies rendering logic in
the Mithril component.
- getUniqueInputApps() & getAllInputTrackUris(): Handles SQL retrieval
of apps and tracks from trace processor.