DesktopModeVisualIndicator: use taskInfo's display's bounds instead.

Previously we use the resource's metric's bounds, which seems to be
always pulling from the primary display's bounds. Update this so that it
uses the TaskInfo's display bounds.

Bug: 382023296
Test: Manually check how indicators look on ext displays
Flag: com.android.window.flags.enable_bug_fixes_for_secondary_display
Change-Id: I1a506d02c47b8c8ec1bc6d2706ae2f64f405b573