Minor cleanup/fixes

- Add FAB collapsing in clear database screen (fixes #7935)
- Don't allow multiline category names to be entered
- Consolidate Downloaded Only / Incognito Mode banner components
- Fix see-through migrate screen sticky header

app/src/main/java/eu/kanade/presentation/more/settings/database/ClearDatabaseScreen.kt

@@ -1,5 +1,6 @@
 package eu.kanade.presentation.more.settings.database
 
+import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.platform.LocalContext
 import eu.kanade.presentation.components.Scaffold
@@ -7,7 +8,6 @@ import eu.kanade.presentation.more.settings.database.components.ClearDatabaseCon
 import eu.kanade.presentation.more.settings.database.components.ClearDatabaseDeleteDialog
 import eu.kanade.presentation.more.settings.database.components.ClearDatabaseFloatingActionButton
 import eu.kanade.presentation.more.settings.database.components.ClearDatabaseToolbar
-import eu.kanade.presentation.util.plus
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.ui.setting.database.ClearDatabasePresenter
 import eu.kanade.tachiyomi.util.system.toast
@@ -18,6 +18,7 @@ fun ClearDatabaseScreen(
     navigateUp: () -> Unit,
 ) {
     val context = LocalContext.current
+    val lazyListState = rememberLazyListState()
     Scaffold(
         topBar = { scrollBehavior ->
             ClearDatabaseToolbar(
@@ -31,6 +32,7 @@ fun ClearDatabaseScreen(
         floatingActionButton = {
             ClearDatabaseFloatingActionButton(
                 isVisible = presenter.selection.isNotEmpty(),
+                lazyListState = lazyListState,
                 onClickDelete = {
                     presenter.dialog = ClearDatabasePresenter.Dialog.Delete(presenter.selection)
                 },
@@ -40,6 +42,7 @@ fun ClearDatabaseScreen(
         ClearDatabaseContent(
             state = presenter,
             contentPadding = paddingValues,
+            lazyListState = lazyListState,
             onClickSelection = { source ->
                 presenter.toggleSelection(source)
             },

app/src/main/java/eu/kanade/presentation/more/settings/database/components/ClearDatabaseContent.kt

@@ -5,6 +5,7 @@ import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.navigationBars
+import androidx.compose.foundation.lazy.LazyListState
 import androidx.compose.foundation.lazy.items
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.res.stringResource
@@ -19,12 +20,14 @@ import eu.kanade.tachiyomi.R
 fun ClearDatabaseContent(
     state: ClearDatabaseState,
     contentPadding: PaddingValues,
+    lazyListState: LazyListState,
     onClickSelection: (Source) -> Unit,
 ) {
     Crossfade(targetState = state.isEmpty.not()) { _state ->
         when (_state) {
             true -> FastScrollLazyColumn(
                 contentPadding = contentPadding + WindowInsets.navigationBars.asPaddingValues(),
+                state = lazyListState,
             ) {
                 items(state.items) { sourceWithCount ->
                     ClearDatabaseItem(

app/src/main/java/eu/kanade/presentation/more/settings/database/components/ClearDatabaseFloatingActionButton.kt

@@ -4,6 +4,7 @@ import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
 import androidx.compose.foundation.layout.navigationBarsPadding
+import androidx.compose.foundation.lazy.LazyListState
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.Delete
 import androidx.compose.material3.Icon
@@ -12,11 +13,14 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import eu.kanade.presentation.components.ExtendedFloatingActionButton
+import eu.kanade.presentation.util.isScrolledToEnd
+import eu.kanade.presentation.util.isScrollingUp
 import eu.kanade.tachiyomi.R
 
 @Composable
 fun ClearDatabaseFloatingActionButton(
     isVisible: Boolean,
+    lazyListState: LazyListState,
     onClickDelete: () -> Unit,
 ) {
     AnimatedVisibility(
@@ -33,6 +37,7 @@ fun ClearDatabaseFloatingActionButton(
                 Icon(Icons.Outlined.Delete, contentDescription = "")
             },
             onClick = onClickDelete,
+            expanded = lazyListState.isScrollingUp() || lazyListState.isScrolledToEnd(),
         )
     }
 }