Fix manga screen FAB going under the taskbar on tablets

Closes #4077

app/src/main/java/eu/kanade/presentation/manga/MangaScreen.kt

@@ -15,6 +15,7 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.only
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.systemBars
+import androidx.compose.foundation.layout.wrapContentWidth
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.LazyListScope
 import androidx.compose.foundation.lazy.items
@@ -535,20 +536,20 @@ fun MangaScreenLargeImpl(
             )
         },
         bottomBar = {
-            Box(
-                modifier = Modifier.fillMaxWidth(),
-                contentAlignment = Alignment.BottomEnd,
-            ) {
-                SharedMangaBottomActionMenu(
-                    selected = state.selectedChapters,
-                    onMultiBookmarkClicked = onMultiBookmarkClicked,
-                    onMultiMarkAsReadClicked = onMultiMarkAsReadClicked,
-                    onMarkPreviousAsReadClicked = onMarkPreviousAsReadClicked,
-                    onDownloadChapter = onDownloadChapter,
-                    onMultiDeleteClicked = onMultiDeleteClicked,
-                    fillFraction = 0.5f,
-                )
-            }
+            // Aligned by its own modifier: a wrapper would always be laid out, and the scaffold then drops the
+            // navigation bar inset under the FAB
+            SharedMangaBottomActionMenu(
+                selected = state.selectedChapters,
+                onMultiBookmarkClicked = onMultiBookmarkClicked,
+                onMultiMarkAsReadClicked = onMultiMarkAsReadClicked,
+                onMarkPreviousAsReadClicked = onMarkPreviousAsReadClicked,
+                onDownloadChapter = onDownloadChapter,
+                onMultiDeleteClicked = onMultiDeleteClicked,
+                fillFraction = 0.5f,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .wrapContentWidth(Alignment.End),
+            )
         },
         snackbarHost = { SnackbarHost(hostState = snackbarHostState) },
         floatingActionButton = {