Move app state banner to the very top (#8706)

This moves the banners to the root composable and so eliminates the need to
track the app states in every screen.

app/src/main/java/eu/kanade/tachiyomi/ui/browse/BrowseTab.kt

@@ -9,13 +9,9 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
-import cafe.adriel.voyager.core.model.ScreenModel
-import cafe.adriel.voyager.core.model.coroutineScope
 import cafe.adriel.voyager.core.model.rememberScreenModel
 import cafe.adriel.voyager.navigator.tab.LocalTabNavigator
 import cafe.adriel.voyager.navigator.tab.TabOptions
-import eu.kanade.core.prefs.asState
-import eu.kanade.domain.base.BasePreferences
 import eu.kanade.presentation.components.TabbedScreen
 import eu.kanade.presentation.util.Tab
 import eu.kanade.tachiyomi.R
@@ -25,8 +21,6 @@ import eu.kanade.tachiyomi.ui.browse.migration.sources.migrateSourceTab
 import eu.kanade.tachiyomi.ui.browse.source.sourcesTab
 import eu.kanade.tachiyomi.ui.main.MainActivity
 import eu.kanade.tachiyomi.util.storage.DiskUtil
-import uy.kohesive.injekt.Injekt
-import uy.kohesive.injekt.api.get
 
 data class BrowseTab(
     private val toExtensions: Boolean = false,
@@ -47,7 +41,6 @@ data class BrowseTab(
     @Composable
     override fun Content() {
         val context = LocalContext.current
-        val screenModel = rememberScreenModel { BrowseScreenModel() }
 
         // Hoisted for extensions tab's search bar
         val extensionsScreenModel = rememberScreenModel { ExtensionsScreenModel() }
@@ -63,8 +56,6 @@ data class BrowseTab(
             startIndex = 1.takeIf { toExtensions },
             searchQuery = extensionsQuery,
             onChangeSearchQuery = extensionsScreenModel::search,
-            incognitoMode = screenModel.isIncognitoMode,
-            downloadedOnlyMode = screenModel.isDownloadOnly,
         )
 
         // For local source
@@ -75,10 +66,3 @@ data class BrowseTab(
         }
     }
 }
-
-private class BrowseScreenModel(
-    preferences: BasePreferences = Injekt.get(),
-) : ScreenModel {
-    val isDownloadOnly: Boolean by preferences.downloadedOnly().asState(coroutineScope)
-    val isIncognitoMode: Boolean by preferences.incognitoMode().asState(coroutineScope)
-}

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/BrowseSourceScreen.kt

@@ -43,7 +43,6 @@ import eu.kanade.domain.source.interactor.GetRemoteManga
 import eu.kanade.presentation.browse.BrowseSourceContent
 import eu.kanade.presentation.browse.components.BrowseSourceToolbar
 import eu.kanade.presentation.browse.components.RemoveMangaDialog
-import eu.kanade.presentation.components.AppStateBanners
 import eu.kanade.presentation.components.ChangeCategoryDialog
 import eu.kanade.presentation.components.Divider
 import eu.kanade.presentation.components.DuplicateMangaDialog
@@ -167,8 +166,6 @@ data class BrowseSourceScreen(
                     }
 
                     Divider()
-
-                    AppStateBanners(screenModel.isDownloadOnly, screenModel.isIncognitoMode)
                 }
             },
             snackbarHost = { SnackbarHost(hostState = snackbarHostState) },

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/browse/BrowseSourceScreenModel.kt

@@ -17,7 +17,6 @@ import eu.davidea.flexibleadapter.items.IFlexible
 import eu.kanade.core.prefs.CheckboxState
 import eu.kanade.core.prefs.asState
 import eu.kanade.core.prefs.mapAsCheckboxState
-import eu.kanade.domain.base.BasePreferences
 import eu.kanade.domain.category.interactor.GetCategories
 import eu.kanade.domain.category.interactor.SetMangaCategories
 import eu.kanade.domain.category.model.Category
@@ -82,7 +81,6 @@ class BrowseSourceScreenModel(
     private val sourceId: Long,
     searchQuery: String?,
     private val sourceManager: SourceManager = Injekt.get(),
-    preferences: BasePreferences = Injekt.get(),
     sourcePreferences: SourcePreferences = Injekt.get(),
     private val libraryPreferences: LibraryPreferences = Injekt.get(),
     private val coverCache: CoverCache = Injekt.get(),
@@ -103,9 +101,6 @@ class BrowseSourceScreenModel(
 
     var displayMode by sourcePreferences.sourceDisplayMode().asState(coroutineScope)
 
-    val isDownloadOnly: Boolean by preferences.downloadedOnly().asState(coroutineScope)
-    val isIncognitoMode: Boolean by preferences.incognitoMode().asState(coroutineScope)
-
     val source = sourceManager.get(sourceId) as CatalogueSource
 
     /**