Android overhaul: remove dead code (tokens, an icon, catalogue and fake samples, helpers, unused imports)

Nothing referenced any of these:
* :core:design KvittDimens iconMeta, seesawWidth, KEYPAD_COLUMNS, presetMinHeight, navIndicatorWidth/Height;
  KvittShapes largeIncreased, extraLargeIncreased, extraExtraLarge (the FAB's 20 is `fab`); KvittSpacing
  navigationBarHeight (ShortNavigationBar draws its own 64 dp); KvittMotion's spatial/effects springs, hero count,
  bunting stagger, shared-axis, sheet-enter and keypad-swap values (only the seesaw spring is used); the
  segmentedItem builder and snackbarMillis (KvittSnackbarVisuals maps the duration itself); KvittIcon.Description
  with its two drawables.
* Catalogue sample Samples.renamedGroceries; fake scenarios SettleScenarios.partnerOwes and longAccountIds.
* :data Clock.todayDate().
* Unused imports in Common.kt, Settle.kt, Timeline.kt, AnalyticsScenarios.kt, Clock.kt.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TQd3pEP9UeN2uifbHknQ7B

android/core/fakes/src/main/kotlin/se/hagstedt/kvitt/fakes/analytics/AnalyticsScenarios.kt

@@ -17,7 +17,6 @@ import se.hagstedt.kvitt.model.Measure
 import se.hagstedt.kvitt.model.RangePreset
 import se.hagstedt.kvitt.model.Share
 import se.hagstedt.kvitt.model.SplitMode
-import se.hagstedt.kvitt.model.UserId
 
 /**
  * Scenarios of S-11 (analytics) and S-12 (drill-down), M7e. All share FakeScenarios.empty's household and clock

android/core/fakes/src/main/kotlin/se/hagstedt/kvitt/fakes/settle/SettleScenarios.kt

@@ -66,15 +66,6 @@ object SettleScenarios {
         expenses = proposal.expenses + listOf(expense(0xe4, vardag, jacob, 650_000, "2026-10-12")),
     )
 
-    /** S-9 with the partner owing globally: the direction defaults to "Anna betalar dig". */
-    val partnerOwes: FakeScenario = proposal.copy(
-        expenses = listOf(
-            expense(0xe1, huset, jacob, 616_900, "2026-10-02"),
-            expense(0xe2, japan, jacob, 270_000, "2026-10-05"),
-            expense(0xe3, vardag, anna, 236_900, "2026-10-09"),
-        ),
-    )
-
     /** S-9 offline with pending changes: settling up works unchanged (AC-11.6). */
     val offline: FakeScenario = proposal.copy(
         online = false,
@@ -162,9 +153,6 @@ object SettleScenarios {
         ),
     )
 
-    /** The long scenario's accounts in created order. */
-    val longAccountIds: List<AccountId> = longAccounts.map { it.id }
-
     private fun id(suffix: Int): String = "01920000-0000-7000-8000-" + suffix.toString(16).padStart(12, '0')
 
     private fun account(suffix: Int, name: String, createdAt: String, archived: Boolean = false): Account =