refactor: extract 'showThemedToast' and 'getDensityAdjustedValue' to :common:android

UIUtils.kt held two unrelated helpers: Toast wrappers and a density scaler.
Both are pure Android utilities with no project deps, so they belong in
:common:android. Splits them into Toast.kt and Density.kt for clarity and
deletes the AnkiDroid-side UIUtils.kt.

Author: criticalAY

AnkiDroid/src/main/java/com/ichi2/anki/AbstractFlashcardViewer.kt

@@ -112,6 +112,7 @@ import com.ichi2.anki.cardviewer.handledGamepadKeyDown
 import com.ichi2.anki.cardviewer.handledGamepadKeyUp
 import com.ichi2.anki.common.annotations.NeedsTest
 import com.ichi2.anki.common.utils.android.HandlerUtils.newHandler
+import com.ichi2.anki.common.utils.android.showThemedToast
 import com.ichi2.anki.compat.CompatHelper.Companion.resolveActivityCompat
 import com.ichi2.anki.compat.ResolveInfoFlagsCompat
 import com.ichi2.anki.dialogs.TtsPlaybackErrorDialog

AnkiDroid/src/main/java/com/ichi2/anki/AnkiActivity.kt

@@ -66,6 +66,7 @@ import com.ichi2.anki.android.input.shortcut
 import com.ichi2.anki.common.annotations.LegacyNotifications
 import com.ichi2.anki.common.annotations.NeedsTest
 import com.ichi2.anki.common.crashreporting.CrashReportService
+import com.ichi2.anki.common.utils.android.showThemedToast
 import com.ichi2.anki.common.utils.annotation.KotlinCleanup
 import com.ichi2.anki.compat.CompatHelper
 import com.ichi2.anki.compat.CompatHelper.Companion.registerReceiverCompat

AnkiDroid/src/main/java/com/ichi2/anki/AnkiDroidApp.kt

@@ -41,6 +41,7 @@ import com.ichi2.anki.common.annotations.NeedsTest
 import com.ichi2.anki.common.coroutines.applicationScope
 import com.ichi2.anki.common.crashreporting.CrashReportService.sendExceptionReport
 import com.ichi2.anki.common.utils.android.SdCard
+import com.ichi2.anki.common.utils.android.showThemedToast
 import com.ichi2.anki.common.utils.annotation.KotlinCleanup
 import com.ichi2.anki.compat.CompatHelper
 import com.ichi2.anki.contextmenu.AnkiCardContextMenu

AnkiDroid/src/main/java/com/ichi2/anki/AnkiDroidJsAPI.kt

@@ -36,6 +36,7 @@ import com.ichi2.anki.CollectionManager.withCol
 import com.ichi2.anki.browser.search.SearchString
 import com.ichi2.anki.cardviewer.ViewerCommand
 import com.ichi2.anki.common.annotations.NeedsTest
+import com.ichi2.anki.common.utils.android.showThemedToast
 import com.ichi2.anki.common.utils.ext.stringIterable
 import com.ichi2.anki.libanki.Card
 import com.ichi2.anki.libanki.Collection

AnkiDroid/src/main/java/com/ichi2/anki/CardTemplateBrowserAppearanceEditor.kt

@@ -26,6 +26,7 @@ import androidx.annotation.CheckResult
 import androidx.appcompat.app.AlertDialog
 import androidx.core.widget.doAfterTextChanged
 import com.ichi2.anki.CollectionManager.TR
+import com.ichi2.anki.common.utils.android.showThemedToast
 import com.ichi2.anki.databinding.ActivityCardBrowserAppearanceBinding
 import com.ichi2.anki.dialogs.DiscardChangesDialog
 import com.ichi2.anki.libanki.CardTemplate

AnkiDroid/src/main/java/com/ichi2/anki/CardTemplateEditor.kt

@@ -64,6 +64,7 @@ import com.ichi2.anki.android.input.ShortcutGroup
 import com.ichi2.anki.android.input.shortcut
 import com.ichi2.anki.cardviewer.SingleCardSide
 import com.ichi2.anki.common.annotations.NeedsTest
+import com.ichi2.anki.common.utils.android.showThemedToast
 import com.ichi2.anki.common.utils.annotation.KotlinCleanup
 import com.ichi2.anki.compat.CompatHelper.Companion.getSerializableCompat
 import com.ichi2.anki.databinding.ActivityCardTemplateEditorBinding

AnkiDroid/src/main/java/com/ichi2/anki/DeckPicker.kt

@@ -97,6 +97,7 @@ import com.ichi2.anki.common.annotations.NeedsTest
 import com.ichi2.anki.common.crashreporting.CrashReportService
 import com.ichi2.anki.common.destinations.navigate
 import com.ichi2.anki.common.time.TimeManager
+import com.ichi2.anki.common.utils.android.showThemedToast
 import com.ichi2.anki.common.utils.annotation.KotlinCleanup
 import com.ichi2.anki.compat.CompatHelper.Companion.getSerializableCompat
 import com.ichi2.anki.contextmenu.DeckPickerMenuContentProvider

AnkiDroid/src/main/java/com/ichi2/anki/FieldEditLine.kt

@@ -31,6 +31,7 @@ import androidx.annotation.DrawableRes
 import androidx.constraintlayout.widget.ConstraintSet
 import androidx.core.os.ParcelCompat
 import androidx.vectordrawable.graphics.drawable.VectorDrawableCompat
+import com.ichi2.anki.common.utils.android.getDensityAdjustedValue
 import com.ichi2.anki.common.utils.annotation.KotlinCleanup
 import com.ichi2.anki.compat.setTooltipTextCompat
 import com.ichi2.anki.databinding.ViewCardMultimediaEditlineBinding

AnkiDroid/src/main/java/com/ichi2/anki/IntentHandler.kt

@@ -29,6 +29,7 @@ import androidx.core.content.IntentCompat
 import androidx.work.WorkManager
 import com.ichi2.anki.common.annotations.NeedsTest
 import com.ichi2.anki.common.coroutines.applicationScope
+import com.ichi2.anki.common.utils.android.showThemedToast
 import com.ichi2.anki.common.utils.trimToLength
 import com.ichi2.anki.dialogs.DialogHandler.Companion.storeMessage
 import com.ichi2.anki.dialogs.DialogHandlerMessage

AnkiDroid/src/main/java/com/ichi2/anki/IntentHandler2.kt

@@ -18,6 +18,7 @@ package com.ichi2.anki
 
 import android.os.Bundle
 import com.ichi2.anki.NoteEditorFragment.Companion.NoteEditorCaller
+import com.ichi2.anki.common.utils.android.showThemedToast
 import com.ichi2.anki.noteeditor.NoteEditorLauncher
 import timber.log.Timber