Fix issues, update configuration.

app/build.gradle

@@ -31,7 +31,7 @@ android {
 			applicationIdSuffix = '.debug'
 		}
 		release {
-			multiDexEnabled false
+			multiDexEnabled true
 			minifyEnabled true
 			shrinkResources true
 			proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
@@ -79,7 +79,7 @@ afterEvaluate {
 	}
 }
 dependencies {
-	coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.2'
+	coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.3'
 
 	//noinspection GradleDependency
 	implementation('com.github.KotatsuApp:kotatsu-parsers:f732582d55') {

app/src/main/kotlin/org/koitharu/kotatsu/shelf/ui/ShelfMenuProvider.kt

@@ -9,7 +9,6 @@ import androidx.fragment.app.FragmentManager
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.ui.dialog.RememberSelectionDialogListener
-import org.koitharu.kotatsu.core.util.ext.startOfDay
 import org.koitharu.kotatsu.local.ui.ImportDialogFragment
 import org.koitharu.kotatsu.shelf.ui.config.ShelfSettingsActivity
 import org.koitharu.kotatsu.shelf.ui.config.size.ShelfSizeBottomSheet